Delta was a General Motors compact front-wheel drive automobile and crossover SUV platform, originally developed by Opel Group.

Vehicles of this platform generally carry the letter "A" in the fourth character of their VINs.

The platform features a torsion beam (marketed as compound crank) rear suspension with optional Watt's link which improves vehicle handling; such configuration is used with the Opel Astra, Buick Verano, Cadillac ELR, Opel Cascada and higher trim-levels of the American-market Chevrolet Cruze.

GM chose this compact vehicle architecture for its first Voltec application, the Chevrolet Volt.

Production began in November 2010 with the first Chevrolet Volts delivered to retails customers in December 2010.