If you want harder cops, use this opponent acceleration tables:
For standard pursuit cars ( BMW, Caprice, Suv, Sedan and Hatchback ):
Table 1: 8.4,8.8,9.2,9.6,9.92,10.24,10.48,10.72,10.88,11.04,11.2,11.28,11.36,11.44
Table 2: 11.44,11.36,11.36,11.28,11.2,11.04,10.96,10.8,10.64,10.4,10.24,10,9.76,9.44
Table 3: 9.2,8.96,8.64,8.4,8.16,7.92,7.68,7.52,7.28,7.04,6.8,6.64,6.4,6.24
Table 4: 6,5.84,5.6,5.44,5.28,5.04,4.88,4.72,4.56,4.4,4.24,4.08,3.92,3.76
Table 5: 3.6,3.44,3.28,3.12,2.96,2.8,2.72,2.56,2.4,2.24,2.16,2,1.84,1.76
Table 6: 1.6,1.52,1.36,1.28,1.12,1.04,0.88,0.8,0.64,0.56,0.48,0.32,0.24,0.08
Table 7 and 8: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
For interceptors ( Diablo, Porsche, Corvette, Camaro and La Nina ):
Table 1: 12.2,12.7,13.2,13.7,14.1,14.5,14.8,15.1,15.3,15.5,15.7,15.8,15.9,16
Table 2: 16,15.9,15.9,15.8,15.7,15.5,15.4,15.2,15,14.7,14.5,14.2,13.9,13.5
Table 3: 13.2,12.9,12.5,12.2,11.9,11.6,11.3,11.1,10.8,10.5,10.2,10,9.7,9.5
Table 4: 9.2,9,8.7,8.5,8.3,8,7.8,7.6,7.4,7.2,7,6.8,6.6,6.4
Table 5: 6.2,6,5.8,5.6,5.4,5.2,5.1,4.9,4.7,4.5,4.4,4.2,4,3.9
Table 6: 3.7,3.6,3.4,3.3,3.1,3,2.8,2.7,2.5,2.4,2.3,2.1,2,1.8
Table 7: 1.7,1.6,1.5,1.4,1.2,1.1,1,0.9,0.7,0.6,0.5,0.4,0.2,0.1
Table 8: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
Cops will be still dumb, but fast as hell.
Dont use it if you like be a cop. AI opponents almost never finish the race ( even on tracks with my AI ).
If you prefer AA, AAA class racing, you can use Interceptors table for all pursuit cars. And offcourse night cops patch is required.
DON'T FORGET TO MAKE A BACKUP!