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

First Sight: Mercedes-Benz S-Class

The new S-Class is replacing a model series which is the world number 1 in the luxury class, and of which around 485,000 have been produced since its introduction in 1998. The previous W220 series was much admired on introduction and still seems competitive to many eyes but will be replaced by the latest model at the Frankfurt Motor Show in September.   Specification The new flagship model by Mercedes-Benz is larger than its predecessor in every respect.

Concept Car of the Week: Oldsmobile Aerotech (1987)

In late 1984, Oldsmobile management had so much confidence in the potential of its new inline four-cylinder engine Quad 4, that a small team was assigned to the creation of the Aerotech, a research vehicle designed to demonstrate the engine's performance by setting a new world speed record. Ed Welburn, then assistant chief designer, was mostly working on the 1988 Cutlass Supreme but his passion for race cars made him the ideal candidate to be handed the assignment by Oldsmobile 2 studio's chief David North. Inspired by Le Mans racers such as the Porsche 917LH and Jim Hall's Chaparrals, he designed a long, flowing car that immediately seduced design director Chuck Jordan and GM management.

Faster Gumpert Apollo model to debut in Geneva

They may not be lookers, but there is no denying the performance credentials of Roland Gumpert's Apollo sports cars. With the base 650-hp engine package, the brainchild of the former director of Audi Sport is capable of reaching 60 mph in less than three seconds with a top speed or more than 200 mph. But now Gumpert is planning to reveal a faster chapter in the line at next month's Geneva motor show with the Apollo Speed.