2008 Ski-doo Summit Xp Engine Motor Cylinder Head on 2040-parts.com

Who's Where: Mamoru Aoki and Koji Nagano promoted to Nissan executive design directors

Mamoru Aoki and Koji Nagano have been promoted to Nissan executive design directors, reporting to head of design Shiro Nakamura. Mamoru Aoki is now responsible for the design and development of all Nissan brand passenger and electric vehicles as well as design strategy and is based at the carmaker's Design Center in Atsugi, Japan. Koji Nagano – previously design director at Infiniti – now manages the design development of the new Datsun brand and Nissan brand light commercial vehicles.

McLaren MP4-12C tackles the N

Not to be left in the Nordschleife hot-lap dust, McLaren took to the German track as part of its testing of the all-wheel-drive MP4-12C, and of course, there's video. First we see the engineers making final adjustments before a quick montage of the MP4-12C testing across the world. After a few words from McLaren brass and test driver Rudi Adams, they hit the track.

Missing oil changes is false economy

TRYING TO SAVE money on motoring costs by not changing a car’s oil is risking a false economy as it could lead to more wear and fuel consumption, according to Two-thirds (65%) of British drivers admitted they have not changed the oil in their car in the last 12 months, with the same number admitting they buy oil for their car based solely on price. The same study by Mobil 1 also showed only 45% of drivers knew when their car’s scheduled service intervals were, while 15% said they would cut back on servicing to save money. Dan McGoldrick, of Mobil 1, said: ‘Choosing the right oil for your car is vital as it means both the lubricant and the engine will last longer, so you’re saving in the long term.’ Tim Shallcross, Head of Technical Policy at the Institute of Advanced Motorists, added: ‘Apart from lubricating the engine, oil has the important job of absorbing harmful by-products given off by the burning fuel.