Tried the 2 stop in the Lexus 16 for race C (GTR 16 is probably the car but I like the playboy livery on my Lexus and I don't think there is much in it), and not sure if it works or not. Started 3rd, got past the guy in 2nd after about a lap and chased after the guy in 1st. Was right on his bumped when we pitted on lap 6, but I went mediums again and he went hards. Took me about a lap to get by, and then built up about 4.5 secs of a lead and pitted again on lap 12 (so 6m 6m 1h). I came out behind him by about 1.9 secs, and closed that up to 0.9 secs by the end, but still only 2nd place.
Obviously lost a little time overtaking, but it feels like a 1 stop to me - something like 6h 7m
Had a quick tt at race B in the Z4, but couldn't hook up a lap and I ran out of time. Looks like the R8 will be very popular though.