Valve Cover For Continental Io 470 Engine on 2040-parts.com

John Hennessey unwinds modified Chevy SS

Perhaps it's not as impressive as John Hennessey's recent 200mph blast down Houston's new Grand Parkway in a warmed-up Stingray, but we figured we'd show you his latest run down the same road in a Chevrolet SS equipped with his company's HPE600 Supercharged package. Thanks to GM's engineers, the four-door hits its top speed of 163 in 5th, rather than 6th, but what impressed us the most was watching the numbers climb on the VBOX — the car pulls John-Bonham-hard all the way up to its top speed. Hennessey hasn't released details of the mods performed on the SS yet, but we're anxious to see what this anodyne-looking monster will do on the top end once the gearing nag's sent off to the glue factory.

2011 Mercedes CLS Leaks

The first official photos of the 2011 Mercedes CLS leak out The Paris Motor Show beckons, and we are thankfully going to have far more going on in the world of cars than we have for the last month or so. And today’s leak of the 2011 Mercedes CLS in all its production ready glory – well, it’s Photoshop enhanced production ready glory, anyway – is doubtless the first of the Paris leaks to come over the next month or so. Of course, this isn’t the first time we’ve seen the replacement for the Mercedes CLS.

Study: Hybrids safer in accidents, more dangerous to pedestrians

In the first analysis of its kind, the Highway Loss Data Institute found that drivers of hybrid vehicles are, on average, 25 percent less likely to be injured in a crash than drivers of conventional vehicles. Matt Moore, the data institute's vice president and author of the study, said weight was a big factor in its analysis. “Hybrids on average are 10 percent heavier than their standard counterparts,” Moore said in a statement on Thursday.