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

MPG or performance: It's a trade with turbos

Some automakers say turbochargers offer high fuel economy and quick acceleration, the best of both worlds. Well, yes and no. Turbocharged vehicles allow automakers to keep power output high while they downsize engines for better fuel economy.

Audi A3 Saloon arrives in the UK from £24,275

The Audi A3 Saloon (pictured) arrives in the UK Audi isn’t afraid of covering every possible niche in its ambition to be the world’s top ‘Premier’ marque, so we now get a third body shape for the new A3 – the Audi A3 saloon. Designed to sell in markets that prefer a traditional 3-box car to a hatch – like the US and China – Audi still believes there’s a market for an A3 with a boot in the UK, so the new A3 Saloon arrives on sale with a choice, at least initially, of three engines – two petrols and a diesel. Cosmetically, apart from the addition of a boot, the A3 Saloon gets more pronounced curves, bigger wheel arches, new shapes on the bonnet, new bumper, new lights and a boot spoiler.

GM announces pricing for 2014 pickups

The redesigned 2014 Chevrolet Silverado and GMC Sierra pickups go on sale this spring with V8 engines that General Motors claims will get slightly better fuel economy than the rival Ford F-150 equipped with a turbocharged V6. Chevrolet is holding the base sticker price on the 2014 Silverados to the same as that of the 2013 models. This means a rear-drive 2014 Silverado with the base V6 engine will sticker at $24,585, although that model won't be in dealerships until this summer.