See also:

Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). For all other vehicles, use only the unleaded gasolin ...

Accessories and Modifications
Adding non-dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions s ...

Ride & Handling
The regular CTS coupe's ride quality strikes a nice middle ground. There's a firmness to the tuning that's expected in a car like this, but Cadillac hasn't gone overboard and created a bone-jarrin ...