1 Goodyear Eagle F1 Asymmetric 235/40/19 7.5/32 No Repairs 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.

Cadillac ConverJ unveiled at Detroit auto show 2009

By Tim Pollard Motor Shows 12 January 2009 14:29 GM came out fighting with new product in tune with the times at the Detroit auto show 2009. The Cadillac ConverJ is an electric-powered limousine not seen until press day, harnessing the same plug-in hybrid tech as the Chevy Volt. GM product overlord and everyone’s favourite sound-bite merchant Bob Lutz said the Volt’s drivetrain had been renamed the Voltec system and it was this lithium-ion battery set-up that underpinned the ConverJ concept car.

Lexus GS-F to get LF-A V10

Lexus are said to be preparing a GS-F with the V10 from the LF-A (pictured) There have been rumours that Lexus are going to produce a range-topping GS-F for some time. But with car makers looking at downsizing and trying their best to stick smaller and more economical engines in its cars it seemed the possibility of an M5 competing Lexus GS were going nowhere soon. But according to Japan’s Best Car magazine that couldn’t be further from the truth.