Precise steering, immensely capable brakes and ESP
Both STS models are fitted with ZF Servotronic 2 variable power assistance. This speed-sensitive system reduces the level of assistance as vehicle speed increases, for easy low-effort parking without loss of steering feel or precision at high speed.
To meet the demands of a luxury high-performance saloon, the STS is equipped with immensely capable Brembo ventilated disc brakes, 355 mm at the front and 365 mm at the rear. As well as ABS, the braking system incorporates dynamic rear brake proportioning (which takes account of how lightly or heavily laden the car is to regulate pressure to the rear brakes), and emergency brake assist (EBA) which reduces stopping distances by boosting braking power when it detects an emergency.
Both STS models are fitted with Cadillac’s StabiliTrak electronic stability system. In critical driving situations this full-time, automatic ESP-type system assists the driver by correcting understeer and oversteer, through precise application of the brake on individual wheels, to ensure that the vehicle follows the intended course.
Luxuriously specified as standard
As befits a prestige Cadillac saloon, both the STS models are highly specified as standard and come with a single equipment/trim level - Sport Luxury.
Standard equipment includes: full leather upholstery in a choice of three colours, eight-way power seat adjustments for the driver and front passenger (including a memory package which provides presets for two drivers and automatically adjusts the outside rear-view mirrors, power tilt and telescoping steering wheel position). The heated and ventilated driver and front passenger seats also feature four-way power lumbar adjustment. The outer seating positions of the rear seats also have heated cushions and there are folding centre armrests, front and rear.
The heated steering wheel has rake and reach power adjustment, plus ‘easy exit’ which raises the wheel to facilitate exit and entry to the car. All four electric windows have express up/down, the climate control air-conditioning has dual front zones and there is a remote power release for the boot.
Both STS models come with an ‘EasyKey’ keyless entry system, a push button engine start and a Thatcham Category 1 security system.
The 2008 STS models are equipped with a top-of-the-range infotainment system, with a 15-speaker Bose 5.1 Surround Sound system and an integrated six-disc CD/DVD changer, a 203 mm (eight inch) VGA quality touch screen, Bluetooth capability, advanced voice recognition and an advanced DVD navigation system.