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.

Ariel Atom 500 will come to U.S., packs 500-hp V8

This is the car in which strapping yourself in tight is mandatory. British boutique automaker Ariel Motor Co. is on the verge of rolling out the Atom 500, the latest version of its ultralight, two-seat street and track car, this one fitted with a 500-hp narrow-angle V8.

Tornadoes halt output at Mercedes, Toyota plants in South

Violent weather across Alabama, Georgia and Tennessee has halted production at Toyota and Mercedes-Benz plants in Alabama, as emergency workers try to assess two days of damage in the region. On Wednesday, a mile-wide tornado destroyed parts of Tuscaloosa, Ala., damaging the Mercedes-Benz U.S. International auto-assembly plant just north of the city.