Thanks Kevin. I wasn't aware that the side pipes are higher than the chassis. I should be ok as I have calculated the driveway slope assuming there is only four inches of clearance at the midpoint of the car.
Patrick - I don't have the speed bump condition, so I will not have any
oil cooler clearance issue when pulling into the garage. Thanks for the thought, though.
You guys have made my day. I think the forms will be set today for the driveway, and I now am confident in the plan.