2010 Cadillac STS Photo
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On Performance
On Performance
The 2010 Cadillac STS spans the performance spectrum; the best versions are the lighter-handling STS V-6 and the ultra-powerful STS-V.
8.0 out of 10
Browse Cadillac STS inventory in your area.


Buying Tips:

If you're an STS fan, keep in mind Cadillac's been working on a replacement. The new XTS could arrive late in 2012 with V-8 power and standard all-wheel drive, wearing a suit patterned after Cadillac's fabulous Sixteen concept car from 2003.

The 2010 Cadillac STS lags in safety, as does the similarly sized BMW 5-Series sedan. Its standard safety equipment includes dual front, side, and curtain airbags; anti-lock brakes; and traction and stability control, while all-wheel drive is an option. However, the crash-test results are off the pace set by the more recent GM sedans, not to mention the Mercedes fleet. NHTSA (National Highway Traffic Safety Administration) awards the STS four stars in all but side protection for rear-seat passengers (five stars). The IIHS (Insurance Institute for Highway Safety) gives the STS "good" results in frontal-offset protection, "acceptable" results in side impact, and a "poor" grade for rear-impact tests. Intellibeam headlamps are also on the options list for the 2010 STS; they sense approaching taillights or headlights and dim themselves accordingly. Other technological upgrades include revised stability control, a lane-departure warning system, adaptive cruise control, and a blind-spot warning system.

The 2010 Cadillac STS/STS-V doesn't want for the latest features. All versions have standard climate control; AM/FM/XM/CD/MP3 audio systems; a heated, wood-trimmed steering wheel; and metallic and wood trim on the dash. Technology is one of the STS's best selling points. Available features include an Easy Key keyless entry system; Adaptive Remote Start system; a four-color head-up display (HUD); and heated and ventilated seats. OnStar turn-by-turn navigation is offered, as is the eNav system.

Other Choices:

If you like the 2010 Cadillac STS/STS-V, also consider:

  • Audi A6
  • BMW 5-Series
  • Infiniti M35/M45
  • Jaguar XF
  • Mercedes-Benz E-Class

Reason Why:

With a choice of rear- or all-wheel drive and V-6 or V-8 engines, the 2010 Cadillac STS/STS-V slots right alongside the mid-size luxury sedans from Germany and Japan, but both those vehicles are new for 2010 and 2011. The new E-Class takes a turn to the edgy, and its styling doesn't win many friends, though it feels lighter and more adept than ever before. A new 5-Series arrives early in 2010, and a preview in the form of the 5-Series Gran Turismo shows a refined interior, a handsome new design outside, and likely, more fits for Cadillac and Mercedes. Yet another STS rival is the new Jaguar XF/XFR, with a stunning new body, a boutique-hotel interior, and massively powerful V-8 engines but no all-wheel drive. The Infiniti M models are due to be replaced in 2011 with a svelte new shape, but the 2010 models have a surprisingly roomy interior-including a spacious backseat, which is somewhat hard to find in this class-along with available all-wheel drive.

The Bottom Line:

The 2010 Cadillac STS drives well-the STS-V is a trailblazer-but the cramped backseat and well-worn styling haven't kept pace in the luxury class.

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