General Motors Sigma platform

GM Sigma platform
GM Sigma platform
	2010 Cadillac CTS Wagon
Overview
Manufacturer	Cadillac
Parent company	General Motors
Production	2002-2015
Assembly	China: Shanghai (Shanghai GM); Russia: Kaliningrad, Kaliningrad Oblast (Avtotor); United States: Lansing, Michigan (Lansing Grand River);
Body and chassis
Class	Mid-size car
Layout	Front-engine, rear-wheel drive / all-wheel drive
Body style(s)	2-door coupé; 4-door sedan; 5-door station wagon; 5-door sport utility vehicle;
Vehicles	Cadillac CTS; Cadillac SRX; Cadillac STS;
Related	GM Zeta platform
Powertrain
Engine(s)	2.6 L LY9 V6 (gasoline); 2.8 L LP1 V6 (gasoline); 3.0 L LF1 V6 (gasoline); 3.0 L LFW V6 (gasoline); 3.2 L LA3 V6 (gasoline); 3.6 L LY7 V6 (gasoline); 3.6 L LLT V6 (gasoline); 3.6 L LFX V6 (gasoline); 4.4 L LC3 V8 (supercharged gasoline); 4.6 L LH2 V8 (gasoline); 5.7 L LS6 V8 (gasoline); 6.0 L LS2 V8 (gasoline); 6.2 L LSA V8 (supercharged gasoline);
Transmission(s)	5-speed Getrag 260 manual; 5-speed GM 5L40-E automatic; 5-speed GM 5L50 automatic; 6-speed Aisin AY-6 manual; 6-speed GM 6L50 automatic; 6-speed GM 6L80 automatic; 6-speed GM 6L90 automatic; 6-speed Tremec T-56 manual; 6-speed Tremec TR-6060 manual;
Dimensions
Wheelbase	113.4 in (2,880.4 mm); 116.4 in (2,956.6 mm);
Length	188.5–197.6 in (4,787.9–5,019.0 mm)
Width	70.6–74.1 in (1,793.2–1,882.1 mm)
Height	55.9–67.8 in (1,419.9–1,722.1 mm)
Curb weight	3,568–4,343 lb (1,618–1,970 kg)
Chronology
Predecessor	GM V platform (RWD)
Successor	GM Alpha platform

The General Motors Sigma platform is a mid-size automobile platform used by General Motors from the 2003 to 2015 model years. Exclusive to the Cadillac division, Sigma was the successor to the Opel-designed V platform. Initially developed for executive cars, the architecture was expanded for larger model lines, sports sedans, and multiple body styles.

Two generations of the Sigma platform were developed by GM for worldwide markets. The architecture was discontinued for the 2016 in favor of the GM Alpha platform, itself utilized nearly exclusively by Cadillac.