Driven: 2010 Cadillac CTS Sport Wagon

Don Sherman

Cadillac SRX 2.8T
Boosted aspirations.

The T badge on the 2010 SRX's tailgate announces the arrival of Cadillac's first-ever turbocharged gasoline engine. Packing 300 hp and 32 percent more torque than the normally aspirated 3.0-liter base engine, the new 2.8-liter V-6 is armed with variable valve timing, a twin-scroll turbo generating 10.5 psi of boost, and an air-to-air intercooler. Unlike other new turbo engines, fuel is delivered to the intake ports instead of the combustion chambers. Working amiably with its six-speed automatic transmission, the 2.8T demonstrates lag-free, diesel-like urge with a torque curve that's dead flat from 2000 to 5000 rpm. But unlike oil burners, the revs climb enthusiastically to 6200 rpm. Mileage estimates are 16/23 mpg, a 1-mpg loss in the city over 3.0-liter SRXs. While this power escalation is welcome, the 2.8T's claimed 7.5-second 0-to-60-mph acceleration still lags behind the more sporting crossovers offered by Audi, Mercedes-Benz, and Volvo.

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