2003 Jeep Liberty Owners Manual on 2040-parts.com

ZF boss thinks 9 speeds is enough for transmissions

The nine-speed transmission might be where the race to add gears ends, ZF Friedrichshafen CEO Stefan Sommer said. He referred to nine speeds as the "natural limit" because going beyond that number adds weight and complexity that cannot be offset by gains in fuel efficiency. "There is no hard line, but you have to consider the law of diminishing returns.

Aston Martin V12 Vantage S Roadster (2014) unveiled

By James Clark First Official Pictures 16 July 2014 10:42 Aston Martin has revealed the roadster version of its most driver-focussed model, the V12 Vantage S. The car will be mechanically identical to the Coupe, featuring the brand’s 565bhp 6.0-litre V12. It’s enough to propel the V12 Vantage S Roadster to 60mph in just 3.9 seconds and onto a wind-in-the-hair-troubling top speed of 201mph.

SSC Ultimate Aero II: More stuff

SSC Ultimate Aero II It’s a completely different ethos to the Bugatti Veyron, but the Shelby Supercars Ultimate Aero has been a thorn in the side of Volkswagen’s ultimate statement almost from the beginning. Not a technical tour de force in the way the Veyron is, the SSC is, nevertheless, an astonishing car. And it’s about to get more astonishing as the SSC Ultimate Aero II draws closer.