Dinan Stage 2 tuned automatic and all wheel drive 550xi with the N63 twin turbo V8 goes 12.5@112 in the 1/4 mile
This comes hot on the heels of a manual rear wheel drive 550i running firstname.lastname@example.org
. It should shock nobody that the 550xi automatic was able to get a much better 60 foot than the manual rear wheel drive 550i that ran high 12's. This 550xi managed 60 foots in the 1.7X range which is very impressive. The best trap speed was 112.48 so slightly less than MPH than the RWD version which makes sense. The owner estimated the weight of the car with him in it in the 4800 pound range which is not exactly light. Running mid 12's is pretty nice in a luxury sedan on street tires with pump gas.