When the Insurance Institute for Highway Safety (IIHS) tested the Lexus HS 250h, it rated it "Good" (the top score available) for both frontal and side impacts. It received only a "Marginal" rating for rear impact, however, and a so-so "Acceptable" in the newly-added roof-crush test. In our road test, we felt rearward visibility from the driver's seat was better than in most small sedans, though the rear roof pillars are thick, somewhat impeding the rear three-quarter view.
Still, the 2012 Lexus HS 250h comes with a host of standard safety features, along with some optional active-safety features, that shoppers who focus on safety should feel comfortable selecting the HS. It has no fewer than 10 airbags, the most in the class, including rare side-mounted bags in the rear seats and knee bags for not only the driver but the front passenger as well. Those are rare on most cars of any class, let alone entry luxury. Anti-lock brakes, brake assist, electronic stability control, and hill-start assist are all standard. Buyers who opt for the Dynamic Radar Cruise control feature will get a Pre-Collision system packaged with it, to warn the driver if it senses an impending collision at the same time it primes the braking system and other crash-safety features.