Four Seasons 45018 Idler Pulley (belts) on 2040-parts.com

London's GPS-based speed-limit trial puts Big Brother's foot on the gas pedal

A fleet of 12 Toyota Priuses in London have been fitted with GPS-linked speed limiters to measure how drivers respond to having their speed controlled by a computer rather than their own feet. For now, the trial is local to London, run by Transport for London, the agency that manages the city's roads, buses, subways and trains. The agency is using its own fleet of Priuses for the test and will add a bus and a taxi later this year.

Nissan Invitation concept

Nissan has released the first images of its new B-segment concept car, the Invitation. Set to be unveiled at the Geneva Motor show next month, the car previews a new model that will sit between the Micra and Juke as the company returns to the traditional hatchback market. The Invitation's DRG features a wide grille with a chrome accent that extends into the lamps, reminiscent of the Quest MPV.

Hamilton tops the time sheets as F1 season kicks off

LEWIS HAMILTON recovered from the misery of completing just half a lap on his opening run to move to the top of the timesheets on the first official day of the new Formula One season. Less than five minutes into the year's first practice session at Melbourne's Albert Park, and on his maiden installation lap, Hamilton's Mercedes ground to a halt due to a sensor calibration problem that cut out the power unit. That was it for Hamilton until the start of second free practice, when he more than made up for lost time and underlined his status as championship favourite in the wake of Mercedes' impressive form in pre-season testing.