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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.

New 2013 Jaguar XJR debuts: Price from £92,335

Jaguar’s new flagship performance saloon car – the 2013 Jaguar XJR – has debuted in New York and we have full details. Price from £92,335. Last week all we got was a single picture of the new XJR, but now we get a full gallery of new XJR photos to browse, and it does look good.

Call to pass on petrol price cuts

THE AA has joined calls for retailers to pass on a fall in the wholesale price of petrol to motorists. Pump prices have "barely budged" from the late summer high of just over 138p a litre despite a 2p-a-litre fall in the wholesale price of petrol a fortnight ago and a further 3p drop last week, according to the latest AA Fuel Price Report. Petrol averaged 132p at the start of the year, "and this is where it should be heading if the wholesale price collapse persists", the report said.