You could try fitting N grade tyres (N1 would give the most points, N3 would give the easiest race of the N grade tyres) and add some ballast (in the settings screen)
It seems this is the best answer you can get for this question... there's a bit more about it in this thread by Route 66 on maximising A-Spec points for each and every race in the game... the Hyundai Race is discussed in this post... https://www.gtplanet.net/forum/showpost.php?p=1646593&postcount=260