Universal Tachometer 0 - 8000 Rpms on 2040-parts.com

Porsche reveals Panamera Turbo S

PORSCHE has taken the wraps off its new Panamera Turbo S, built for those who think the regular Turbo is neither fast nor exclusive enough. Prices will start at more than £131,000 for the car, which uses a twin-turbocharged 562bhp V8 petrol engine and four-wheel drive to catapult its two-tonne bulk to 62mph in just 3.8 seconds, on the way to a top speed of 192mph. Fuel economy is recorded as 27.7mpg on the European standard ‘combined cycle’ average, but drivers in the real world should expect around 20.

Mercedes A-class (2012) prices and specs

Mercedes has announced its new A-class hatch will start from £18,945 for the entry-level petrol A180 in the UK, rising all the way to £28,775 for the A250 in 'Engineered by AMG' trim. Which engines power the new Mercedes A-class? The base A180 gets a 1.6-litre petrol four-cylinder with 120bhp.

One Lap of the Web: Jay Leno does the T-REX, Porsche 912 restoration and cars with swimming pools

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. -- Watch as Jay Leno explores the 2013 Campagna Motors T-REX, a three-wheel, street-legal motorcycle that is insanely fast, especially since one of the powertrain options is a six-cylinder BMW engine and the thing weighs practically nothing.