Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Porsche 911 GT3 RS (2010) bows in

The 2010 Porsche 911 GT3 RS will be at the Frankfurt Motor Show As you can probably guess, the first thing the latest GT3 RS gets is a hike in power, courtesy of the move from the old naturally aspirated 3.6 litre to the 3.8 litre you get in the new 911 Turbo, minus the turbos. But that still gives you 450bhp – up 15bhp on the regular GT3 – all of which gets shoved through a shorter ratio six-speed manual box. No nancy-boy paddles shifters here.

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.

Mercedes SLS AMG, David Couthard, Golf & a new Guinness world record

David Coulthard drove a Mercedes SLS AMG, Jake Shepherd drove a golf ball and together they created a new Guinness World Record. What’s a good way to get some free PR for a car maker? A Guinness World Record sounds like a good idea (just like MINI in our story earlier today) as does a link to Golf  (lots of drivers play golf) and perhaps a well known name or two.