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

Car makers to be forced to disclaim ‘Official’ economy figures

We’ve banged on for a long time about the futility of official economy figures, especially as car makers get better and better at ‘gaming’ the official economy tests to produce the results they want. Much of the impetus to create the best headline economy figure for a car is driven by taxation, with car makers well aware that the better the official economy results are, the lower their CO2 will be (CO2 isn’t tested for – it’s just extrapolated from the official mpg) and the more appealing the car will be to buyers, particularly fleet buyers. But a ruling by the Advertising Standards Agency (ASA) against Audi could at least see car makers having to admit in their adverts that the ‘official’ economy figure bears no relation to what owners can expect to achieve in the real world.

Jaguar tells design story behind new XF Sportbrake [w/video]

Jaguar has released a walk-through of the design of its new XF Sportbrake, which debuted at last week's Geneva motor show. The video features Jaguar design boss Ian Callum and Studio Director Wayne Burgess explaining how the design team managed to keep the company's first official estate car in line with the sportiness and luxury nature of Jaguar brand. Callum says, "I know it's a very practical car, there's an amount of pragmatism in it, it is functional, but at the end of the day it is we call a Sportbrake, it has to look to sporty.

Audi Sport Quattro concept to wow Frankfurt Motor Show 2013

Audi will reveal a stunning Sport Quattro concept car at the Frankfurt Motor Show 2013 – the spiritual successor to the brilliant 1980s Audi Sport Quattro. With a 700hp V8 hybrid drivetrain capable of 189mph AND 113mpg, it really is a legend reborn for modern times. Audi is debuting the Sport Quattro concept in Frankfurt 30 years after the original Sport Quattro was shown at the very same show.