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New 1.0-litre turbo for Vauxhall Adam

A frugal new 1.0-litre SIDI three-cylinder turbo petrol engine will go on sale in the Vauxhall Adam city car in 2014, following its debut at next month’s 2013 Frankfurt Motor Show. The new low-emissions unit – a rival to Ford’s 1.0 Ecoboost engine in the Fiesta and Focus – will deliver “impressive fuel economy and CO2 emissions significantly lower than 100g/km”, according to Vauxhall. On Bing: see pictures of the Vauxhall Adam Find out how much a used Vauxhall Adam costs on Auto Trader The current Adam range is powered by 1.2- and 1.4-litre petrols.

Jaguar XKR-S GT (2013) first official pictures

This is the new top dog of the Jaguar XK family: the XKR-S GT. Built to celebrate 25 years of Jaguar ‘R’ models, the road-legal GT carries a host of track-focused modifications: there’s carbon aerodynamic aids, chassis tweaks, and the promise of a sub-7min 40sec Nurburgring lap time. A regular XKR-S manages 7min 50sec around the 'Ring in comparison.

Some hybrids are not a green as they seem, interest group says

Car buyers who think they are helping the planet by choosing a hybrid vehicle to aid in cutting emissions don't always get the biggest bang for their buck, according to an environmental interest group. A report from the Union of Concerned Scientists shows that some hybrids come at a much higher price tag than their similarly equipped, conventional-powertrain counterparts, yet offer little in the way of environmental gain. These not-so-green hybrids compromise their value or eco-friendliness in a variety of ways.