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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.

Crash avoidance technology 'can cut crashes by a third'

GROUND-BREAKING rear-end crash avoidance technology can cut the likelihood of these accidents by up to a third, according to the latest crash test results by European safety body Euro NCAP. The Autonomous Emergency Braking (AEB) systems were trialled by Euro NCAP, which independently tests the crash safety standards of new cars in Europe. It tested the cars by driving them towards a dummy car made of an airbag to see which would stop before a collision occurred.

New Porsche 911 Speedster reportedly in the works

When European-car importer Max Hoffman suggested to Porsche that the American audience might like a cheaper, open-top version of the company's 356, Stuttgart responded with the Speedster. And while every Porsche partisan is a special snowflake -- some love road-going racers like the 904, others can't imagine life without a roof-rack-equipped 912, others go gaga for anything with a legit, lift-off Targa top, and some folks just really, really, really love 924s -- the Speedster's the light, lovable kid brother for which any fan of the marque has a measure of affection. Porsche knows it, and as such, they've introduced limited Speedster models of every 911 series since the 3.2 Carrera -- except for the oft-maligned 996 (which is still loved by its proponents, IMS-bearing issues aside).