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The first SRT Viper is sold, we spot an exotic XTS, and the 2013 SVT Raptor offers more off-road fun, this week's Autoweek in review

The first SRT Viper crossed the block at Barrett Jackson in Orange County this past week, for a cool $300,000. All the proceeds will go to the Austin Hatcher Foundation, a charity to help families and children affected by pediatric cancer. While the Cadillac XTS hasn't been a stranger on public roads around Michigan, this heavily camouflaged example is a bit of a mystery.

Mercedes-Benz sells 1000,000 cars in a year in the UK for the first time

Mercedes Bristol hands over the 100,000th Mercedes old in the UK in 2013 It looks like Mercedes move in to a more convincing compact car with the new A-Class is already paying dividends, with Mercedes announcing it has already broken the 100,000 car sales in the UK for this year with a full month still to go. The 100,000th car is, appropriately, a white Mercedes  A 180 CDI Sport – perhaps the best-selling A-Class – which has been collected by its new owner from Mercedes-Benz of Bristol. This is the first full year the new A-Class has been on sale (although the first customer cars didn’t start arriving until well in to the new year) and augers well for sales numbers in 2014.

Saab says three new models are in the works

Saab says a new financial deal with Chinese companies Pang Da and Zhejiang Youngman Lotus gives it the cash to plan three new models. Saab's plan calls for: -- The 9-1, an entry-level car that has been known as the 9-2 until now. -- The 9-6 and the 9-7, which Saab says will be prestige vehicles.