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

Audi reveals new 70mpg+ models

Audi’s new Ultra range may look like the firm’s standard line-up of saloons, coupes and estates, but don’t be fooled. The German firm has performed some key tweaks to make its new 2014 A4, A5 and A6 Ultra models even more efficient. The new core range of ‘Ultra’ frugal Audis follows on from the firm’s high-efficiency debut model, the A3 1.6 TDI Ultra, which went on sale in autumn last year.

General Motors halts Hummer production until sale is completed

General Motors will stop production of Hummers at the end of this week as the automaker waits for Chinese regulators to approve the brand's sale to Sichuan Tengzhong Heavy Industrial Machinery Co. Output of Hummer H3 and H3T models at GM's Shreveport, La., plant will resume once the pending acquisition is completed, Hummer spokesman Nick Richards said. Richards declined to specify what issues remain to be approved by the Chinese government.

New 2015 Mercedes S 65 AMG Coupe revealed – price from £183,065

The new 2015 Mercedes S65 AMG Coupe arrives The range-topping Mercedes S65 AMG Coupe has been revealed, and offers up its credentials as the perfect alternative to the Bentley Continental GT W12 with its 621bhp V12 delivering performance of 0-62mph in a 4.1 second whoosh. Even with its AMG badge, the S65 AMG Coupe is probably best thought of as the luxury take on the more aggressive and sporty S63 AMG Coupe – just as the V8 Continental GT is the sporty side of the Bentley Continental range – with its more effortless take on performance and power. There’s no doubt you get plenty of power and torque from the big V12, with 621 bhp and 737lb/ft of torque – driven to the back wheels through Mercedes’ seven-speed Speedshift automatic ‘box – on tap, enough to get to 62mph in 4.1 seconds and on to a 155mph limited top speed – but in a more creamy and effortless way than the S63.