Nos 1963-65 Buick Riviera Gas Cap on 2040-parts.com

Holden Calais unveiled, previews Chevrolet SS

General Motors' Australian subsidiary, Holden, has revealed its new VF series Calais -- the rear-wheel-drive sedan that in top-of-the-line, V8-powered, left-hand-drive form -- will be exported to North America and sold as the Chevrolet SS. The new Calais sits at the top of what Holden describes as an “extensively upgraded Commodore” range, with right-hand-drive Australian sales set to get underway in June. The Holden Commodore and its more luxurious Calais derivative have underpinned General Motors' sales in Australia since its introduction in 1978.

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.

Apple CarPlay to be available on older cars

AFP | Getty Images Drivers will be able to add Apple’s CarPlay iPhone connectivity to their existing car stereo, meaning it won’t be exclusive to the cars already revealed with the system at this year’s Geneva Motor Show. The radio manufacturers Pioneer and Alpine have both already said they’re working with Apple to introduce the CarPlay software to their existing and new car stereo head units. Apple CarPlay lets you text on the move CarPlay allows you to pair a compatible iPhone (so the iPhone 5, 5S or 5C) with your car infotainment system, controlling the voice, touchscreen and buttons through the car’s in-built screen.