Mako Marine 232 Boat Placards 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.

Infiniti electric sports car concept (2012) teased

Infiniti has trailed a new range-extending electric sports car concept - a long way ahead of its planned debut at the 2012 Geneva motor show. The company already plans an electric Infiniti to piggyback the EV learnings from parent firm Nissan, whose Leaf is the first mainstream electric car built from scratch. But this new sports car will pack a range-extender system, with a petrol or diesel engine to charge the battery when charge gets low.

Citroen DS Wild Rubis tease previews new DS SUV (video)

Citroen are teasing what appears to be a DS SUV ahead of the Shanghai Motor Show later in April – the Citroen Wild Rubis Concept. With French car makers suffering from a downturn in sales in recent years, one beacon of light has been the success of the resurrected DS badge to adorn a range of more upmarket Citroens. From initial scepticism when Citroen revealed their plans to re-badge and titivate mainstream Citroens with some DS history, we were won over by the brilliant DS3 which managed to turn the rather beige C3 in to a properly appealing – and properly fun – sporty hatch.