I’ve always been drawn to Cadillac’s blend of luxury, performance, and bold American style, so when I set out to compare the ATS, CTS, XTS, and STS, I wanted to understand what makes each sedan unique. My goal is to share my firsthand insights, weighing their strengths and weaknesses to help you decide which Cadillac fits your lifestyle. From the sporty ATS to the stately XTS and the discontinued STS, I’ll explore their features, driving dynamics, and quirks in a detailed, conversational breakdown, complete with pros, cons, and a comparison table to guide your choice.
Cadillac Comparison Table
| Feature | Cadillac ATS | Cadillac CTS | Cadillac XTS | Cadillac STS |
|---|---|---|---|---|
| Size Class | Compact | Midsize | Full-size | Midsize |
| Production Years | 2013–2019 | 2003–2019 | 2013–2019 | 2005–2011 |
| Base Engine | 2.0L Turbo 4-cylinder (272 hp) | 2.0L Turbo 4-cylinder (268 hp) | 3.6L V6 (304 hp) | 3.6L V6 (255 hp) |
| Top Engine | 3.6L V6 (335 hp) or ATS-V (464 hp) | 6.2L V8 (640 hp, CTS-V) | 3.6L Twin-Turbo V6 (410 hp) | 4.6L V8 (320 hp, STS-V 469 hp) |
| Drive Type | RWD, optional AWD | RWD, optional AWD | FWD, optional AWD | RWD, optional AWD |
| Transmission | 6-speed manual or 8-speed auto | 8-speed auto | 6-speed auto | 5/6-speed auto |
| Cargo Space | 10.4 cu. ft. | 13.7 cu. ft. | 18.0 cu. ft. | 13.8 cu. ft. |
| Base Price (2019) | ~$38,995 | ~$46,995 | ~$46,895 | ~$47,000 (2011, last year) |
| Fuel Economy (MPG) | 20 city / 29 highway | 18 city / 29 highway | 17 city / 26 highway | 17 city / 26 highway |
| Target Driver | Sporty, younger buyers | Balanced luxury/performance | Comfort-focused, older buyers | Traditional luxury seekers |
My Experience With Cadillac ATS
The Cadillac ATS feels like the scrappy underdog of the lineup, designed to take on European compacts like the BMW 3 Series.
When I first slid behind the wheel, its compact size and responsive handling immediately stood out. The ATS is nimble, with a near-perfect weight distribution that makes cornering a joy.
Its 2.0-liter turbocharged four-cylinder engine, pumping out 272 horsepower, delivers peppy acceleration, especially when paired with the optional six-speed manual—a rarity in modern luxury sedans.
The ATS-V, with its 464-horsepower twin-turbo V6, is an absolute beast, offering track-ready performance without losing its daily-driver appeal.
Inside, the ATS cabin feels snug but premium, with leatherette upholstery and an 8-inch CUE infotainment touchscreen that’s intuitive once you get the hang of it. Features like wireless charging and Apple CarPlay keep it modern, though the back seat is tight for adults—better suited for kids or short trips.
On the road, the ride is firm but not harsh, striking a balance between sportiness and comfort. I loved how the ATS felt connected to the road, especially with its rear-wheel-drive setup, though all-wheel drive is available for those in snowy climates.
However, the ATS isn’t perfect. Its compact size limits cargo space to just 10.4 cubic feet, which can feel restrictive for longer trips. The base engine, while peppy, lacks the refinement of the V6 options, and the CUE system can be finicky with touch inputs. Still, for a driver who craves agility and a sporty edge, the ATS delivers a thrilling experience that’s hard to beat in its class.
Pros Of Cadillac ATS
- Sporty Handling: The ATS’s near 50/50 weight distribution and precise steering make it a standout for spirited driving, rivaling European competitors.
- Engine Options: From the lively 2.0-liter turbo to the ferocious 464-horsepower ATS-V, there’s an engine for every performance level.
- Manual Transmission Option: The available six-speed manual adds a rare, engaging touch for enthusiasts who love to row their own gears.
- Tech Features: Standard Apple CarPlay, Android Auto, and wireless charging keep the ATS competitive in the tech department.
- Fuel Efficiency: With up to 29 MPG highway, the ATS is economical for a luxury sedan, especially with the base engine.
- Premium Interior: High-quality materials and a clean, no-nonsense cabin design give the ATS a timeless, upscale feel.
Cons Of Cadillac ATS
- Cramped Rear Seat: The back seat is tight, with just 33.5 inches of legroom, making it less ideal for adult passengers.
- Limited Cargo Space: At 10.4 cubic feet, the trunk is smaller than competitors, limiting practicality for road trips or groceries.
- CUE System Quirks: The touch-sensitive infotainment can be unresponsive at times, frustrating users who prefer physical buttons.
- Base Engine Refinement: The 2.0-liter turbo feels lively but lacks the smoothness of the V6 or higher-end engines.
- Pricey Options: Adding all-wheel drive or premium trims can push the price close to the larger CTS, reducing its value proposition.
- Discontinued Model: Production ended in 2019, so you’re limited to used models, which may affect long-term parts availability.
My Experience With Cadillac CTS
The Cadillac CTS is the Goldilocks of the lineup—not too small, not too big, but just right for those seeking a balance of luxury and performance.
Driving the CTS, I felt its midsize stature gave it a more substantial presence than the ATS, yet it remained agile. The base 2.0-liter turbo (268 hp) is solid, but the 3.6-liter V6 (335 hp) or the twin-turbo V6 (420 hp) in the V-Sport trim really shine.
The CTS-V, with its 640-horsepower supercharged V8, is a tire-shredding monster that rivals supercars while still being a comfy daily driver.
The interior is a step up from the ATS, with more legroom (45.7 inches front, 35.4 inches rear) and a 13.7-cubic-foot trunk. The CTS feels plusher, with standard power-adjustable seats, an 11-speaker Bose system, and the same CUE infotainment as the ATS.
Magnetic Ride Control smooths out bumps while keeping handling sharp, and the eight-speed automatic shifts seamlessly. I appreciated the spacious cabin for longer drives, though the CUE system’s touch sensitivity still annoyed me occasionally.
The CTS’s versatility is its strength, but it’s not flawless. It’s pricier than the ATS, starting around $46,995 in 2019, and fuel economy dips slightly (18 city/29 highway). The rear seat, while better than the ATS, still feels snug compared to full-size sedans. For drivers wanting a do-it-all luxury sedan, the CTS hits the sweet spot, but it demands a premium.
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Pros Of Cadillac CTS
- Versatile Performance: From the capable 2.0-liter turbo to the monstrous 640-hp CTS-V, it caters to both cruisers and thrill-seekers.
- Spacious Interior: More front and rear legroom than the ATS, plus a 13.7-cubic-foot trunk, makes it family-friendly.
- Magnetic Ride Control: This adaptive suspension delivers a smooth ride with sharp handling, perfect for varied driving conditions.
- Luxury Features: Standard 11-speaker Bose audio, power seats, and leatherette upholstery elevate the cabin’s premium feel.
- Advanced Safety: Available features like adaptive cruise control, lane keep assist, and automatic braking enhance driver confidence.
- Modern Tech: Apple CarPlay, Android Auto, and OnStar 4G LTE Wi-Fi keep the CTS connected and user-friendly.
Cons Of Cadillac CTS
- Higher Price Point: Starting at $46,995 (2019), it’s pricier than the ATS, especially with premium trims or options.
- Fuel Economy: The base engine gets 18 city/29 highway, slightly worse than the ATS, and V8 models guzzle more.
- CUE System Issues: Like the ATS, the touch-based infotainment can be laggy or unresponsive, frustrating tech users.
- Tight Rear Seat: Despite being midsize, the 35.4 inches of rear legroom feels cramped for taller passengers.
- Discontinued in 2019: No new models are available, so you’re buying used, which may limit future support.
- Heavy Weight: The CTS, especially the V8-powered CTS-V, feels heavier than the nimble ATS, slightly dulling agility.
My Experience With Cadillac XTS
The Cadillac XTS is the plush, full-size option for those who prioritize comfort over sportiness.
Driving it, I felt like I was gliding in a modern take on Cadillac’s classic land yachts. ItsCatherine the XTS is powered by a 3.6-liter V6 (304 hp) or a twin-turbo V6 (410 hp), both paired with a six-speed automatic.
It’s front-wheel drive by default, with optional all-wheel drive, but it’s less about corner-carving and more about smooth, effortless cruising.
The XTS’s cabin is its highlight—spacious, with 18 cubic feet of cargo space and luxurious touches like semi-aniline leather and wood trim.
The 8-inch CUE system, Apple CarPlay, and available 4G LTE Wi-Fi keep it modern, but the real draw is the serene ride, enhanced by features like adaptive cruise control and surround vision.
However, the XTS feels less engaging than the ATS or CTS, and its front-wheel-drive roots make it less dynamic. It’s ideal for those who want a comfy, tech-laden cruiser, but it lacks the sporty soul of its siblings.
Pros Of Cadillac XTS
- Spacious Cabin: With ample legroom and an 18-cubic-foot trunk, the XTS is perfect for families or long road trips.
- Smooth Ride: The suspension soaks up bumps, delivering a plush, comfortable driving experience.
- Powerful Engines: The 304-hp V6 is solid, and the 410-hp twin-turbo V6 offers surprising grunt for a big sedan.
- Luxury Amenities: Available semi-aniline leather, heated seats, and a heated steering wheel scream premium comfort.
- Safety Tech: Features like surround vision, blind-spot monitoring, and automatic braking boost safety.
- Affordable for Size: Starting at $46,895 (2019), it’s competitively priced for a full-size luxury sedan.
Cons Of Cadillac XTS
- Front-Wheel Drive Bias: Unlike the rear-drive ATS and CTS, the XTS’s FWD setup feels less engaging.
- Less Sporty: It prioritizes comfort over handling, which may disappoint driving enthusiasts.
- Outdated Transmission: The six-speed auto feels less refined than the eight-speed in the ATS and CTS.
- Discontinued Model: Ended in 2019, so you’re limited to used vehicles, potentially affecting parts availability.
- Fuel Economy: At 17 city/26 highway, it’s less efficient than the ATS or CTS, especially with the twin-turbo.
- Placeholder Status: Designed as a stopgap, it lacks the cutting-edge design of newer Cadillac models.
My Experience With Cadillac STS
The Cadillac STS, discontinued in 2011, feels like a time capsule of Cadillac’s early 2000s reinvention.
When I drove one, its midsize footprint felt substantial yet manageable, with a 3.6-liter V6 (255 hp) or 4.6-liter V8 (320 hp, 469 hp in STS-V).
The ride was smooth, and the rear-wheel-drive platform (with optional AWD) offered decent handling for its era.
The interior, designed with Bentley’s Draxlmeier, exuded luxury with leather and wood, though the tech feels dated—no Apple CarPlay or modern infotainment here.
The STS was a solid luxury sedan, but it’s outshined by its successors. Its styling and tech haven’t aged well, and it’s harder to find in good condition. It’s best for nostalgic buyers who love classic Cadillac vibes.
Pros Of Cadillac STS
- Classic Luxury: The Bentley-designed interior with leather and wood trim feels upscale and timeless.
- V8 Power Option: The 4.6-liter V8, especially the 469-hp STS-V, delivers thrilling performance.
- Comfortable Ride: Tuned for smooth cruising, it’s great for long highway drives.
- Available AWD: Optional all-wheel drive makes it suitable for all-weather driving.
- Spacious Trunk: At 13.8 cubic feet, it offers decent cargo space for a midsize sedan.
- Affordable Used: As a discontinued model, well-maintained STSs can be found at bargain prices.
Cons Of Cadillac STS
- Outdated Technology: Lacks modern features like Apple CarPlay or advanced safety tech.
- Discontinued in 2011: Parts and service may be harder to come by compared to newer models.
- Aging Design: The styling feels dated compared to the sleek ATS, CTS, or XTS.
- Fuel Economy: At 17 city/26 highway, it’s not as efficient as modern Cadillacs.
- Less Sporty: It prioritizes comfort over agility, lagging behind the ATS and CTS in handling.
- Reliability Concerns: Older models may have higher maintenance costs due to age.
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Frequently Asked Questions (FAQ)
The ATS is better for sporty driving and efficiency, while the XTS excels in comfort and space. Choose ATS if you prioritize performance, XTS if you need a roomy cruiser.
The CTS offers a balance of performance and luxury, while the XTS focuses on comfort and space. Pick CTS for dynamic driving, XTS for plush family transport.
The CTS provides more space and power, while the ATS is nimbler and more affordable. Go for CTS if you need room, ATS if you want agility.
STS stands for “Seville Touring Sedan,” a name tied to Cadillac’s luxury sedan lineage, emphasizing comfort and performance.
Conclusion: For Your Cadillac Journey
You’ve got a tough choice ahead, but I hope my journey through the ATS, CTS, XTS, and STS helps you narrow it down. If you crave sporty thrills, the ATS’s nimble handling is your match. Want a balance of power and luxury? The CTS is a versatile gem. For plush comfort and space, the XTS delivers. And if you’re a fan of classic Cadillac vibes, the STS might be your nostalgic pick. Test-drive them to feel the difference, and let your driving style and needs guide you to the perfect Cadillac.
