The 2008 Cadillac DTS ($41,770) comes in one trim level, with three available Luxury packages, one Performance package, plus the new Platinum Edition package and a moderate list of stand-alone options. All versions are powered by Cadillac's 4.6-liter Northstar V8, which produces 275 horsepower in standard tune, and 292 horsepower with certain option packages. A four-speed automatic transmission is standard.

Standard equipment includes leather upholstery, dual-zone automatic climate control, eight-way power front bucket seats with four-way adjustable power lumbar support, eight-speaker AM/FM/CD/MP3 audio with RDS and integrated antenna, XM Satellite Radio with three-month trial, Magnasteer power steering, cruise control, power windows, power programmable door locks with Pass-Key III Plus security, illuminated visor mirrors, remote starter, driver information center, auto-dimming rearview mirror with compass, rear seat pass-through, OnStar with one-year Directions & Connections service, automatic headlamps with wiper activation, fog lights, solar-control glass, self-leveling suspension, and P235/55R17 all-season tires on machined aluminum wheels.

The Luxury I package ($3,050) adds park assist, heated and cooled front seats, heated rear outboard seats, rear seat adjustable headrests, four-way power rear lumbar support, heated windshield washer fluid, Rainsense Generation II intermittent wipers with structureless wiper blades, heated power-adjustable mirrors with turn-signal indicators and driver's side auto-dimming, leather wrapped and heated steering wheel, and tilt steering column.

Luxury II ($2,340) includes all the content of Luxury I, plus tri-zone automatic climate control and a universal remote transmitter.

Luxury III ($5,075) includes Luxury I and II, plus an upgraded stereo with a six-disc in-dash CD changer and eight Bose speakers, cargo net, IntelliBeam headlights, front four-way massaging power lumbar, power tilt/telescoping steering column with memory settings, trunk mat, rear illuminated vanity mirrors, genuine Dark Burled Walnut wood trim and 17-inch chromed aluminum wheels

The Performance package ($7,560) includes all but a few of the Luxury I, II, and III items, plus the higher-tuned 292-hp V8, performance algorithm shifting, Magnetic Ride Control, and P245/50 H-rated tires on 18-inch chromed aluminum wheels.

The new Platinum Edition package ($6,490) combines the 292-hp V8, Performance Algorithm shifting, Magnetic Ride Control and 18-inch chromed wheels with special materials on the inside and an extra dash of flash on the outside; a power sunroof, DVD navigation, and other conveniences are included as well.

Options include adaptive cruise control ($1,695), DVD-based navigation ($2,145), a front bench seat ($295), Tehama leather ($1,995), body-color grille ($250), universal home remote ($110), automatic climate control ($195), a power tilt/slide sunroof ($1,200), and 17-inch chromed wheels ($825).

Safety features that come standard on all models include six air bags, including a dual-depth front-passenger air bag. Four-wheel disc brakes with ABS and Brake Assist, StabiliTrak electronic stability control with all-speed traction control, child-safe rear door locks, and a tire pressure monitor come standard. Lane Departure Warning and Side Blind Zone Alert are available on select models.