The Cadillac ELR was derived from which Cadillac concept car?

The Cadillac ELR was derived from the Cadillac Converj concept car.

General Motors unveiled the Converj at the 2009 North American International Auto Show in Detroit. The sleek two-door concept previewed a luxury Cadillac using GM’s extended-range electric-vehicle technology, and its design and engineering direction ultimately became the production ELR.

The ELR entered production for the 2014 model year, with manufacturing at GM’s Detroit-Hamtramck Assembly plant. It shared the basic Voltec architecture used by the Chevrolet Volt, combining a lithium-ion battery, electric drive, and a gasoline engine-generator. Cadillac gave the system a more upscale cabin and distinctive coupe body.

The Converj-to-ELR path was not immediate. GM considered, canceled, and later revived the project during the company’s bankruptcy-era restructuring and product reviews. The production ELR therefore retained the concept’s identity while becoming a separate Cadillac model. It was built for model years 2014 and 2016, with no 2015 model year.