According to a report out of China, Cadillac is planning to add the 2.0-liter turbocharged, direct-injected Ecotec in-line four-cylinder as an option in the SLS sedan. The SLS, you'll recall, is an extended-wheelbase version of the STS built only for the Chinese market. The SLS will likely use the same 220 horsepower, 258 pound-foot version of the 2.0 turbo being installed in the Buick Regal/Opel Insignia.
The 2.0-liter actually offers more torque than the 3.0-liter direct-injected V6 already offered in the SLS and nearly as much horsepower as the 3.6-liter, so it should be a viable option for the big sedan. Considering that most of these cars are purchased for executives to be driven around in, absolute performance and driving pleasure might as well take a back seat to running costs anyway, right?