Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Watch Tesla Model S testing new titanium armor

In a missive signed by Elon Musk himself, Tesla announced it would be adding titanium plates and aluminum deflectors to all new Model S sedans and offering free retrofits for the 20,000 or so existing EVs. The company earlier offered an over-the-air software update to raise the ground clearance of the Model S so the car would be more likely to clear dangerous road debris. The actions were in response to well-publicized fires in the electric luxury sedans.

Vintage-photograph auction at Lime Rock to benefit teen-driver training

Photographs of racing legends from yesteryear will help the young drivers of tomorrow through an auction over Labor Day weekend at Lime Rock. Autographed vintage photos of famous drivers will be sold to benefit a charity called Survive the Drive, which educates and trains high-school drivers in the Northeast. The program helped more than 10,000 students in the 2008-09 school year.

Mercedes-Benz to use Maybach name for range-topping S-class

Mercedes-Benz will be bringing back the Maybach name for the extra-long-wheelbase S-class, which is expected to go on sale by the end of this year. This version of the S-class will be a third bodystyle (out of an eventual total of four), and will be positioned above the V12-powered S600 and its AMG siblings. The Maybach-branded Mercedes-Benz personal limousine will essentially be a replacement for the Maybach 62, and will feature an entirely reworked rear section with new rectangular rear doors and a new rear passenger compartment with first-class seating.