words: Bill Cho, spotter guide: Andy Blackmore Design The Mobil 1 Twelve Hours of Sebring is upon us and as usual, Andy Blackmore Design has the ultimate spotter guide for this historic race. This spotter guide includes the Audi R8 LMS GT3/GT4 and RS 3 LMS entries from Montaplast by Land Motorsport (Audi R8 LMS GT3 #29), Magnus Racing (Audi R8 LMS GT3 #44), Carbahn Motorsports (Audi R8 LMS GT4 #39), eEuroparts.com Racing (Audi RS 3 LMS TCR #10), Compass Racing (Audi RS 3 LMS TCR...