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Audi S6, S7 and S8 (2011) first official pictures

To offset its two tiny Urban concept cars and prove it’s still a sporty, performance-inspired brand, Audi will unveil not one but three hot S models at the 2011 Frankfurt motor show in September. The Audi S6, S7 and S8 are all powered by the company’s new 4.0-litre V8, with the most powerful iteration offering up 512bhp. Are the Audi S6, S7 and S8 all available with 512bhp?

Video shows race car flip from driver's view

Doug Peterson brought a new race car to the SCCA Chicago Region's June Sprints at Road America in Elkhart Lake, Wis., June 15-17. But the car's status moved from new to trashed in a few blinks of an eye. Video from a camera mounted on the car shows Peterson making a move to the right as the field moves toward the start/finish line.

Tesla asks NHTSA to investigate fires

In response to concerns following a recent accident which appeared to result from road debris damaging the underside of a battery compartment of a Tesla Model S, causing a fire in the engine compartment, the company has announced that it has requested that the National Highway Traffic Safety Administration conduct a full investigation into the fire incidents. In a blog post, Tesla CEO Elon Musk wrote the following about the investigation: "While we think it is highly unlikely, if something is discovered that would result in a material improvement in occupant fire safety, we will immediately apply that change to new cars and offer it as a free retrofit to all existing cars. Given that the incidence of fires in the Model S is far lower than combustion cars and that there have been no resulting injuries, this did not at first seem like a good use of NHTSA's time compared to the hundreds of gasoline fire deaths per year that warrant their attention." Tesla has also released a software update to the cars which will maintain their standard ride height at highway speeds, preventing the air suspension from lowering the car an extra inch at highway speeds for greater aerodynamic efficiency.