I'm in the market for my next Cadillac. I'm pretty sure I'm going with the STS-V, but wondering if anyone has supercharged The STS AWD and what were the results. Thank you in advance for your input! Looking forward to messaging with you all.

 

If you want some performance, go with the STS-V. If you don't care about that, go with the STS-4. But with the STS-4 (All Wheel Drive) you will notice a huge drag from the all wheel drive. With the Northstar engine you will see 18-19 mpg average. You will notice that it struggles to accelerate because of all the mechanical drag from the all wheel drive. So, you probably don't really want AWD unless you live in an area with a lot of snow and sleet and such. If you were to supercharge the Northstar engine you would notice a somewhat shorter engine life. The engine in the V car is different from the standard Northstar engine. I would love to own a STS-V, but I'm stuck with an STS-4. Don't get me wrong - It is a great car to drive. Handling is incredible for such a heavy car. It has every option in the book and all works well. But read my questions about front door locks in this STS forum.
Mark D.