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2014 Cadillac XTS adds new twin-turbo V6

Cadillac is adding a new 420-hp, twin-turbo 3.6-liter V6 as an option for its XTS sedan for 2014. General Motors unveiled the engine back in March, confirming that it will be an option on the new-for-2014 Cadillac CTS, and recent Cadillac press materials confirm that the engine option will be expanded to the XTS. The all-aluminum engine makes use of direct-injection technology and is the highest-output V6 in GM history.

Rolls Royce Wraith Convertible planned & the Wraith hits Harrods

That means the Wraith gets a stiffened suspension setup to stop it rolling too much and more weight to the steering so you have a chance of knowing where the front wheels are at any given moment. It’s a promising offering from Rolls Royce, but it looks as though the Wraith won’t be a stand-alone model but will be joined, in due course, by a convertible version for those who find the Wraith Coupe not quite ostentatious enough. Who’d have guessed?

2013 SRT Viper costs less than $100,000

We’ve had our first taste of the 2013 SRT Viper on-track at GingerMan Raceway in South Haven, Mich., which you can read about here. Now we know about how much it will cost to put the new V10 sports car in your garage. The SRT Viper starts at $99,390, which includes $1,995 for destination but doesn’t include a gas-guzzler tax that’s still being finalized.