When my mechanic and I went to change the oil for the first time, a normal 40 minute oil change became over an hour and 45 minutes with the required removal of 19 bolts of 3 different sizes and 4 underside skid/aero panels. So regular mechanics' bills for day-to-day stuff will be expensive.
But this machine is screwed together better than the best GMC Suburban's (I've owned 2) and Cadillacs (I've owned 6) out there and it is a really fine car. And if you can afford the purchase price, you can afford the mediocre gas mileage. If I have to be in a car during a severe crash, this is the car to be in. Strongly recommend this machine.