Here is the full list of all 20 Bemis Wamilton Racing achievements.
Find 200 sign test area
Play 60 seconds track 15
Play 60 seconds track 14
Play 60 seconds track 13
Play 60 seconds track 12
Play 60 seconds track 11
Play 60 seconds track 10
Play 60 seconds track 9
Play 60 seconds track 8
Play 60 seconds track 7
Play 60 seconds track 6
Play 60 seconds track 5
Play 60 seconds track 4
Play 60 seconds track 3
Play 60 seconds track 2
Play 60 seconds track 1
Find 100 sign test area
Find 300 sign test area
Play 60 seconds track 16
Play 60 seconds track 17