Rochester Quadrajet 4 Barrel Carburetor on 2040-parts.com

Ferrari unveils a challenging 458

Ferrari took the wraps off the 458 Challenge on Wednesday in Maranello, Italy, at the company's annual dealer meeting. The new car replaces the F430 Challenge in the 2011 Ferrari Challenge Trofeo Pirelli, which is being extended to include a new Asia-Pacific series. Based on the 458 ("Forza-5-8," AW, Nov.

Audi A3 g-tron revealed

Audi has revealed the A3 g-tron Sportback ahead of the Geneva Motor Show, an A3 that runs on Compressed Natural Gas (CNG) and petrol. The A3 g-tron is powered by a tweaked version of Audi’s 1.4 litre TSI petrol engine which can run on both -gas and petrol, with the A3 g-tron normally using the petrol just for start-up and switching over to e-gas as soon as it’s running. Audi has provided two fillers under a common fuel flap – one for e-gas and one for petrol – with the A3 g-tron producing a total of 108bhp with the dual-fuel setup, enough to power the A3 g-tron to 62mph in 11 seconds.

Mercedes GLA 45 AMG: OFFICIAL

Mercedes GLA 45 AMG: OFFICIAL After the arrival of the Mercedes A 45 AMG – and its swoopy coupe sibling CLA 45 AMG – it was always more than likely that Mercedes would launch a GLA 45 AMG, and we saw the first evidence of that with the debut of the Mercedes GLA 45 AMG Concept at the Los Angeles Auto Show in November. But now, Mercedes has the production version of the GLA 45 AMG ready to go and we get the first photos and details ahead of its debut at the Detroit Auto Show next month. Powered by the same 355bhp 2.0 litre turbo as the A 45 AMG and CLA 45 AMG, the GLA 45 AMG manages to get to 62mph in 4.8 seconds (0.2 slower than the A 45 and CLA 45) and manages official economy fo 37.6mpg and 175g/km (but not in the real world).