Many auto manufacturers are shifting toward smaller and more economical engines. Luckily GM Powertrain has an excellent inline-4 turbo engine called the Ecotec. This engine is used in the kappa cars — the Saturn Sky Redline, the Pontiac Solstice GXP, and the Opel GT.
Should this engine be used in Cadillacs? YES. Put this in the base CTS NOW as a replacement for the non-DI 3.6L or as an optional engine.