The Saturn Sky had a "Red Line" model with a turbo.. it had 50% more horsepower

In 2008 GM released a Turbo Upgrade for the 2.0L engine that was found in the Redline Sky. Finally the engine came to life with power at 290hp and the much needed 340 lb·ft of torque.

https://oppositelock.kinja.com/what-happened-to-saturn-sky-455849727