I’ve had one for about a year now. Great car.

Fuel economy is great on long highway stretches and it’s incredibly quiet inside.

There are plenty of users on the Buick forums “decladding” the car. To completely do it you just need a front bumper from a non-TourX Regal (yes, even the GS works!) and the rear lower trim…

There is no extra mechanism. The ABS modules pressurizes the rear brake lines and holds the pressure.