Speedometer 13 Nissan Versa Sdn Mph S Plus #1768555 on 2040-parts.com

One Lap of the Web: Bonneville Salt Flats, Suzuki concepts and Porsches for all

Petrolicious is hanging with Bob Sirna, Bonneville Salt Flats competitor, and his Mercedes-Benz 300SL Gullwing. Sirna has been coming to Bonneville for the last 12 years with his SL, which is probably more suited to a museum stand. Sirna likes to say, “Enjoy your toys,” but we hope he has a nice coat of Rustoleum on there.

Mercedes AMG GT gets new 503 bhp Twin-Turbo 4.0 litre V8 (video)

The new Mercedes AMG GT (pictured) gets the new 503 bhp Twin-Turbo 4.0 litre V8 We’ve speculated that the new Mercedes AMG GT – and, for that matter, futures ’63′ AMGs – will get a new twin-turbo V8 to provide the power as Mercedes look to move away from the naturally aspirated 6.2 litre V8 in cars like the SLS. And this is it. A new 4.0 litre twin-turbo V8 – the M178 engine – has been developed to replace the 6.2 litre V8 and, in initial tune, develops 503 bhp at 6250 rpm and 479lb/ft of torque from just 1750 rpm.

Roush unveils two 540-horsepower Mustangs

The go-fast guys at Roush tore the cover off two 540-hp 2010 Ford Mustangs today. The range-topping Stage 3 Mustang will be limited to 103 copies for 2010, while the 540RH will slot in as minimalistic approach to the iconic Pony Car for customizers. They both launch this fall.