geramata

i`ve been considering replacing my current e60 with either a used f10 550i or 535i...and while looking trough the cars for sale, i`ve noticed that there a lot of those cars are awd.
i like the ocasional visit to the test and tune sessions in my local dragstrip to have some fun and was wondering if the awd systems in this cars either affects or benefits performance while racing the 1/4 mile?
I live in texas so there is no benefit to an xi model for me at all.
anyone has 60ft times with any of the mentioned rides?
thanks for your time in advance