Chad is by far the best mechanic I have experienced in the DFW area. I take my 2009 bmw 335i to him and he always does a great job. If you want dealership quality work done at the best price then I highly recommend Autowerks of Plano.
Chad is very informative, trustworthy, and only fixes what needs to be fixed. Definitely worth the 20 min drive from downtown/uptown for the quality of work and price.