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Top 5 most important cars at the 2013 Frankfurt motor show

The five most important memorable cars in attendance at the world’s biggest motor show Nothing is as controversial as irritating your core enthusiasts, and the Audi Sport Quattro concept risks doing just that. Its name and styling riff off one of the most iconic cars in Audi’s back catalogue – and in WRC history – yet the new yellow version unveiled at the 2013 Frankfurt motor show has abandoned the five-cylinder engine, manual gearbox, and respectable kerbweight of the 2010 Quattro concept. In its place, we’ve an RS7-based coupe with the power of a Lamborghini Aventador (691bhp), twice the claimed economy of a Golf GTD (113mpg), but only because of a twin-turbo V8 mated to a hefty hybrid powertrain, and that means this new Sport Quattro weighs as much as a Bugatti Veyron Super Sport (1845kg).

Lincoln C concept

Ford's luxury division revealed a surprise new concept at the 2009 NAIAS: the C-segment, six-passenger Lincoln C design study, aimed at upscale urban consumers. According to Freeman Thomas, director of Ford's Strategic Concepts Group where the concept was created, "the Lincoln C is about efficiency without compromise". The exterior design was concieved by David Woodhouse and Jeremy Leng, and the interior by Andrei Markevich and Matt Edwards.

U.S. proposes new labels for fuel economy, emissions levels

Consumers shopping for a new car would be able to compare fuel economy and emissions levels across all types of vehicles by looking at revised labels on window stickers under an Obama administration proposal made Monday. Government regulators are seeking public comment on changes to fuel-economy labels that would allow comparisons across electric vehicles, plug-in hybrid electric vehicles, and conventional gasoline and diesel vehicles. The U.S.