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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 Q30 concept debuts before Frankfurt auto show

A concept of the new Infiniti Q30, a crossover hatchback that will go on sale in the US in 2015, has been unveiled ahead of a Frankfurt motor show debut. Based on new front-drive platform developed by Mercedes-Benz for its A-class family, the Q30 features a slightly raised ride height, sweeping roofline and confident styling, all aimed at winning sales from younger buyers who are predicted to make-up 80 per cent of global luxury car-buyers by 2020. 'The shape of the Infiniti Q30 concept deliberately challenges categorisation.

The weirdest job titles in the car industry revealed

Car companies are diversifying into new areas of specialism - and this attention to detail is bringing some novel new job titles to the automotive industry. A quick browse through the recruitment pages and job ads reveals that manufacturers are hiring for strange and unusual roles. Here's a pick of the job titles we found recently.