2008 Scion Xb Air Flow Meter 2510156 on 2040-parts.com

One Lap of the Web: Senna's sweet go-kart

-- Gran Turismo has always included some, uh, unique car choices for its video games. (Sure, the Patent-Motorwagen is significant, but hot-lapping the 1-hp horseless carriage in "Gran Turismo 4" wasn't exactly riveting, unless you used cheats.) So that's why Ayrton Senna's go-kart from the 1978 World Karting Championship should be interesting -- it's nowhere near as fast as his Lotus 97T, but it shows that "Gran Turismo" wasn't kidding when developers said they wanted fans to chart the entirety of Senna's life. Plus, if you make it go 352 mph you can finally stick it to Prost.

GQbyCitroen unveiled in London

Two days after unveiling the Survolt and DS High Rider concepts at the Geneva motor show, Citroen last week pulled off a rare surprise by unveiling the GQbyCitroen - its third concept in three days. Instigated around a year ago, the project is a result of GQ Magazine's editor Dylan Jones questioning what his readers' ideal car might look like, and subsequently being put in touch with Citroen's Mark Lloyd, design manager for this project. The concept is a 4.5m long shooting break, based on the C4 platform.

McLaren MP4-12C: Now it’s the performance photos & video

McLaren MP4-12C Performance We should probably call today ‘McLaren Day’, not Valentine’s Day. For today is the day we get every last morsel of detail on McLaren’s first new car in almost twenty years – the McLaren MP4-12C. Keen readers – and those not in Europe – will have seen we posted all the MP4-12C performance data at midnight last night – it was all embargoed until today.