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Suburban Terror: Hennessey offers upgrade packages for GMC SUVs

Lest you think that Hennessey Performance Engineering will only tune up your Dodge Viper or Cadillac CTS-V, feast your eyes on this little number showing one of the company's souped-up SUVs taking on a 2011 Nissan GT-R. It's really an unfair fight: The Cadillac Escalade sports a 6.2-liter V8 which in stock form makes about 400 hp. But Hennessey, not looking for a beatdown, drops a twin-turbocharged 427 cubic-inch LSX engine with high-flow cylinder heads, intake and exhaust upgrades, a performance camshaft and a laundry list of other parts to bring the truck's output to 1,000 hp.

Most of Saleen sold to Michigan group

The future of specialty carmaker Saleen Inc. is getting a little clearer: Most of the company was sold to a Michigan group last week after being on the block since November. An entity called MJ Acquisitions, which owns parts and engine companies in Michigan, bought Saleen’s performance street-car program, supercharger and aftermarket business from Los Angeles private-investment firm Hancock Park Associates.

Tax-return car deals

Automakers are offering cut-rate financing, cash back and lease deals just as our income-tax-refund checks are coming in the mail. These timely tax-return car deals are paired with the necessity for automakers to make room on dealer lots for all-new models. (See the Cadillac CTS deals.) Here, we break down some of the incentives being offered this month.