The 2005 CTS builds on Cadillac's century-long tradition of technology and design innovation, and is a modern interpretation of the strikingly beautiful cars that made Cadillac famous. Built on GM's acclaimed Sigma rear-wheel-drive architecture, CTS was rigorously tested at the famed Nurburgring racetrack in Germany.
For 2005, CTS debuts a new entry-level model with a new 2.8L engine that makes 210 horsepower (156 kw) and 195 lb.-ft. of torque (265 Nm). The 2.8L V-6 VVT is a modified version of the 3.6L VVT CTS engine. Braking and suspension capabilities remain the same. The new model is intended to widen the CTS and Cadillac demographic base to include younger buyers. Production begins in October 2004. Both engines can be mated to a new six-speed manual transmission, and the 2.8L also is available with the five-speed automatic transmission.
The 2005 CTS also has a new instrument cluster, 16-inch painted wheels, 16-inch machined wheels, and three new exterior colors: Stealth Gray, Sand Storm and Moonstone.
2.8L V-6 VVT
As the second-produced variant of GM’s new global V-6 engine family, the new 2.8L V-6 VVT was designed using the latest advanced engineering tools. It is an all-aluminum 60-degree dual overhead cam, four-valve-per-cylinder design developing 210 hp (156 kw) at 6500 rpm and 195 lb.-ft. (265 Nm) of torque at 3200 rpm. Consistent with the 60 degree V-6 design, the engine employs a wide range of advanced technologies, including fully variable valve timing of the intake and exhaust valves and a dual-stage variable intake manifold to deliver outstanding flexibility, fuel economy and emissions control. The 2.8L V-6 comes mated to a new six-speed manual transmission or the Hydra-Matic 5L40-E automatic transmission.
3.6L V-6 VVT engine
The 3.6L V-6 VVT debuted in the 2004 CTS, earning praise from consumers and media alike. For 2005, the 3.6L V-6 VVT comes standard with a six-speed manual transmission.
The 3.6L V-6 is an all-aluminum, 60-degree dual overhead cam, four-valves-per-cylinder design. Like the 2.8L V-6, it has fully variable valve timing and a dual-stage variable intake manifold.The 3.6L V-6 develops 255 horse power (190 kw) at 6200 rpm and 252 lb.-ft. (342 Nm) of torque at 3200 rpm.
New for 2005, the CTS will be offered with an Aisin six-speed manual transmission. Eagerly anticipated by performance enthusiasts, this is the first time the 3.6L V-6 VVT will be offered with a manual transmission. The 2.8L also is available with the six-speed manual.
The six-speed transmission is fully synchronized (including reverse), with a single overdrive. This allows for lower propshaft speeds and improved NVH. The transmission is rated for 400 Nm (295 horse power) and its unique architecture is such that the gear inertias are lower, resulting in significantly lower shift efforts compared to conventional RWD manual transmissions.
The compact, state-of-the-art 5L40-E automatic transmission features a full complement of advanced electronic control capabilities. These include a shift mode button that allows the driver to select between "sport," "winter" and "economy" modes. Another electronic feature is also a first for GM: engine braking in all five gears, giving the automatic the same sporty feel as a downshifting manual.
Source: Cadillac press