What are the engine choices? Cadillac offers two engines. Both are sophisticated units equipped with Variable Valve Timing that help deliver smooth, efficient performance. A 24-valve V6 engine displaces 3.6 liters and arrives standard in the base car. Power is an impressive 255 hp. and 255 lb.-ft. of torque. More importantly, however, is the engine’s ability to deliver 90 percent of peak torque from 1,600 to 5,800 rpm. Pricier STS models arrive with a 4.6-liter Northstar V8, producing 320 horses and 315 lb.-ft. of twist. In addition to VVT, both powerplants operate according to electronic throttle control. A 5-speed automatic is the only transmission offered at the present. Is it RWD only? Both RWD and AWD are available in V8-powered Caddys, while V6 sedans initially make do with rear-drive only. Eventually, however, AWD will become available across the lineup. Under most circumstances this AWD system distributes torque in a 40/60 split favoring the rear. But when traction fades, all four wheels adjust to maximize grip. The AWD hardware works in harmony with StabiliTrak, GM’s electronic stability system that includes traction control.
|