A more powerful model comes with a 3.6-liter V6 VVT ($31,700), which develops 255 horsepower at 6200 rpm and 252 pound-feet of torque at 3200 rpm. This engine debuted as an option for the 2004 CTS. (Gone is the old 3.2-liter V6 used in the 2003-04 CTS.)

Both come with an optional five-speed automatic transmission ($1,200), but both can be ordered with the new Aisin six-speed manual transmission (which replaces the old five-speed manual).

Standard equipment includes leather-trimmed upholstery, dual-zone climate control, power driver's seat, driver information center, a seven-speaker sound system, 16-inch alloy wheels with all-season tires, and one year of the OnStar road assistance service. Also standard are traction control and anti-lock brakes (ABS) with brake proportioning, which balances the braking front and rear. Side-impact airbags and side air curtains come standard for front and rear passengers in addition to the standard dual frontal airbags.

The Sport Package ($1,875) takes the suspension tuning a step further with monotube shocks, brake pads with more anti-fade heat resistance, 17-inch alloy wheels with 255/50R17 tires, load-leveling rear suspension, speed-sensitive power steering, and StabiliTrak electronic stability control. The Luxury Package ($3,165) includes heater power front seats, memory presets for two drivers, auto-dimming rearview mirror with compass, HomeLink universal garage door transmitter, alarm system, and a wood-trimmed steering wheel and shift knob.

The new CTS-V ($49,300) comes stuffed with the 5.7-liter V8 LS6 engine from the high-performance Corvette Z06 rated at 400 horsepower and 395 pound-feet of torque. It comes mated to a Tremec six-speed manual gearbox (an automatic is not available). To put this power to the ground, CTS-V gets 18-inch wheels, grippy tires, big Brembo brakes, and other high-performance tweaks.