1991-1993 Yamaha Ex570e Exciter Ii Le Gates G-force Belt Drive Eq on 2040-parts.com

2014 Porsche Cayman gets a performance-testing iPhone app

To promote the new 2014 Cayman, Porsche has cooked up an iPhone app called “Cayman Code of the Curve.” You're probably already rolling your eyes at the prospect of another automaker app that is little more than a downloadable advertisement, but this seems to be something different -- the app is designed to record your driving performance in real-time and then share results with friends. Porsche enthusiast site flatsixes.com has an exclusive first look at the app, which is still in development but is reported to be coming “soon.” Based on preliminary screenshots provided by Porsche, the app instructs users to set up a variety of courses -- cone slalom, autocross and reaction-time challenge courses are shown -- then uses the iPhone's internal accelerometer and GPS receiver to track and record your performance. You'll also be able to use the app's “record your curve” function to share favorite drives with friends on Facebook.

One Lap of the Web: High plains drifters, Vettel FX and supercars in London

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. YoTtube user Munch997 uploaded eight minutes of supercar glory, filmed on London streets.

Cyclists 'revel in car-free streets'

THOUSANDS of cyclists have enjoyed the chance to ride on car-free streets during a series of bike rides around the country. The Space for Cycling Big Ride saw people of all ages take to their bikes in London, Birmingham, Bristol, Leeds, Manchester, Newcastle and Sheffield. Organisers estimated 5,000 cyclists took part in the event in the capital, where 30 guided rides took place under bright sunshine.