According to MotorTrend, General Motors is considering fitting its 4.5-liter Duramax V8 Turbodiesel inside the Cadillac CTS sedan as a stepping-stone between the standard V6-equipped CTS and the barn-burning CTS-V.

The report contends that the Duramax V8 would be an easy fit inside the confines of the CTS' engine bay with the addition of the CTS-V's bulging hood. The dual-overhead cam, four-valve diesel V8 puts out 310 hp and a tire decimating 520 lb.-ft. of torque and GM already has a transmission that can handle the grunt. The oilburner currently meets the tougher 2010 emissions standards which would allow it to be sold in all 50 states, and with a reported 20-25% increased fuel economy over the V8 model, the diesel CTS could provide some competition to similar offerings from Audi, BMW and Mercedes-Benz. According to MT, the amount of modifications would be minimal and the addition of the CTS diesel would help to boost GM's CAFE certification to meet the stricter 35 mpg requirements in 2020.

[Source: MotorTrend]


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