I dont use SS rubber cause its too grippy and unrealistic, but i do enjoy running these types of cars around the Nurburgring using RD (road) tyres.
I've got a huge list of cars from quite a few drivers that run the Ring at various Lans -
http://www.joeracer.designdesktop.com/misc/GT4 Ring Openday TIMESHEET 2008.xls
If you sort through some of the times for various Japanese performace cars you can see that most are pretty even -
7'49.034 Joe Racer 2002 Mazda RX-7 Spirit R Type A (FD)
7'50.534 Joe Racer 2001 Mazda RX-7 Bathurst R (FD)
7'51.361 Joe Racer 1998 Mazda RX-7 Type RS
7'53.317 Joe Racer 2000 Mazda RX-7 Type RS
7'53.520 Joe Racer 2000 Mazda RX-7 Type RZ (FD)
7'55.755 TheForce 2002 Mazda RX-7 Spirit R Type A (FD)
7'56.694 Hayden 1998 Mazda RX-7 Type RS
7'59.800 NWS77 2002 Mazda RX-7 Spirit R Type A (FD)
8'00.566 Rypien 2001 Mazda RX-7 Bathurst R (FD)
8'02.532 Rypien 2002 Mazda RX-7 Spirit R Type A (FD)
8'02.636 Smallhorses 2001 Mazda RX-7 Bathurst R (FD)
8'02.814 SiR_Dan 2001 Mazda RX-7 Bathurst R (FD)
8'03.119 TheForce 2001 Mazda RX-7 Bathurst R (FD)
8'03.154 SiR_Dan 2002 Mazda RX-7 Spirit R Type A (FD)
8'04.655 Joe Racer 1996 Mazda RX-7 Type RS
8'06.375 Joe Racer 1996 Mazda RX-7 Type RZ (FD)
8'08.476 Hayden 2002 Mazda RX-7 Spirit R Type A (FD)
8'08.599 Touring Mars 2001 Mazda RX-7 Bathurst R (FD)
8'08.975 Joe Racer 1995 Mazda RX-7 Type R-S
8'09.105 Joe Racer 1997 Mazda RX-7 Type RS-R
8'09.451 Joe Racer 1995 Mazda RX-7 Type RZ (FD)
8'09.602 Joe Racer 1993 Mazda RX-7 Type RZ (FD)
8'10.287 bo-no 2001 Mazda RX-7 Bathurst R (FD)
8'11.603 Joe Racer 1991 Mazda RX-7 Type R
8'12.239 Joe Racer 1992 Mazda RX-7 Type RZ (FD)
8'12.774 Joe Racer 1993 Mazda RX-7 Type R
8'13.906 TheForce 2002 Mazda RX-7 Type RS
8'15.255 PRF 1995 Mazda RX-7 Type RZ (FD)
8'21.509 TheForce 2000 Mazda RX-7 Type RZ (FD)
8'24.064 SiR_Bryce 1998 Mazda RX-7 Type RS
8'26.751 PRF 1992 Mazda RX-7 Type RZ (FD)
7'48.111 Joe Racer 2002 Nissan Skyline GTR M-Spec Nur 4WD
7'51.635 Joe Racer 2000 Nissan Skyline GTR 4WD
7'52.757 PRF 2000 Nissan Skyline GTR 4WD
7'53.345 Joe Racer 2002 Nissan Skyline GTR VspecII Nur 4WD
7'53.454 Joe Racer 1999 Nissan Skyline GTR 4WD
7'54.038 Joe Racer 2000 Nissan Skyline GTR MidnightPurple 4WD
7'54.243 Joe Racer 2000 Nissan Skyline GTR VspecII 4WD
7'54.709 Joe Racer 1999 Nissan Skyline GTR Vspec N1 4WD
7'54.935 Joe Racer 2002 Nissan Skyline GTR M-Spec 4WD
7'55.508 Joe Racer 2000 Nissan Skyline GTR VspecII N1 4WD
7'57.958 PRF 1999 Nissan Skyline GTR 4WD
7'58.552 PRF 2000 Nissan Skyline GTR VspecII 4WD
7'58.957 Joe Racer 1999 Nissan Skyline GTR MidnightPurple 4WD
7'59.695 SiR_Dan 2002 Nissan Skyline GTR M-Spec Nur 4WD
8'01.310 Prancing Horse 2000 Nissan Skyline GTR VspecII N1 4WD
8'01.985 TheForce 2000 Nissan Skyline GTR VspecII N1 4WD
8'02.506 TheForce 2002 Nissan Skyline GTR Vspec II Nur 4WD
8'03.040 Crazyhorse 2000 Nissan Skyline GTR VspecII N1 4WD
8'03.146 PRF 1996 Nissan Skyline GTR 4WD
8'03.307 Hayden 1999 Nissan Skyline GTR Vspec 4WD
8'03.330 PRF 1997 Nissan Skyline GTR Vspec 4WD
8'03.681 PRF 1995 Nissan Skyline GTR N1 4WD
8'03.976 PRF 1996 Nissan Skyline GTR LM Limited 4WD
8'04.020 TheForce 2002 Nissan Skyline GTR M-Spec Nur 4WD
8'04.289 PRF 1995 Nissan Skyline GTR 4WD
8'06.140 Joe Racer 1995 Nissan Skyline GTR N1 4WD
8'06.359 Rypien 2000 Nissan Skyline GTR VspecII N1 4WD
8'08.632 PRF 1991 Nissan Skyline GTR 4WD
8'09.071 PRF 1994 Nissan Skyline GTR VspecII 4WD
8'09.683 PRF 1991 Nissan Skyline GTR N1 4WD
8'09.862 NWS77 2002 Nissan Skyline GTR M-Spec Nur 4WD
8'10.105 Joe Racer 1993 Nissan Skyline GTR Vspec N1 4WD
8'10.166 PRF 1989 Nissan Skyline GTR 4WD
8'10.281 SiR_Dan 2000 Nissan Skyline Vspec II N1 4WD
8'10.448 PRF 1993 Nissan Skyline GTR Vspec N1 4WD
8'11.389 SiR_Dan 2000 Nissan Skyline Vspec II N1 4WD
8'12.106 aDifferentName 1999 Nissan Skyline GTR Vspec 4WD
8'12.433 TheForce 2000 Nissan Skyline Vspec II N1 4WD
8'12.472 Hayden 1993 Nissan Skyline GTR Vspec N1 4WD
8'14.794 Rypien 1994 Nissan Skyline GTR Vspec II 4WD
8'15.184 PRF 1993 Nissan Skyline GTR 4WD
8'15.248 Rypien 1991 Nissan Skyline GTR 4WD
8'15.596 NWS77 1996 Nissan Skyline GTR Vspec 4WD
8'16.347 Bollocks 1999 Nissan Skyline GTR 4WD
8'20.814 TheForce 1993 Nissan Skyline GTR Vspec N1 4WD
8'23.879 Hayden 2001 Nissan Skyline Sedan 300GT FR
8'34.995 SiR_Bryce 2002 Nissan Skyline GTR M-Spec Nur 4WD
8'39.199 SiR_Bryce 1999 Nissan Skyline GTR Vspec N1 4WD
8'46.823 Dorkboy 2002 Nissan Skyline GTR M-Spec Nur 4WD
7'41.818 Joe Racer 2002 Honda NSX Type R MR
7'43.002 Hayden 2002 Honda NSX Type R MR
7'48.086 Joe Racer 1992 Honda NSX Type R MR
7'51.296 aDifferentName 2002 Honda NSX Type R MR
7'51.430 phino 2002 Honda NSX Type R MR
7'53.549 bo-no 2002 Honda NSX Type R MR
7'53.714 TheForce 2002 Honda NSX Type R MR
7'53.732 SiR_Dan 2002 Honda NSX Type R MR
7'53.821 ColtCobra 2002 Honda NSX Type R MR
7'56.200 Hayden 2001 Honda NSX Type S MR
7'56.549 Hayden 1999 Honda NSX Type S Zero MR
7'57.387 Small_Fryz 2002 Honda NSX Type R MR
7'57.726 Joe Racer 2001 Honda NSX MR
7'58.002 02ti 2002 Honda NSX Type R MR
7'58.018 Joe Racer 1997 Honda NSX Type S MR
8'00.183 PRF 1997 Honda NSX Type S Zero MR
8'00.398 Joe Racer 1997 Honda NSX MR
8'01.515 evilteez 2002 Honda NSX Type R MR
8'01.516 TheForce 1992 Honda NSX Type R MR
8'02.329 PRF 1999 Honda NSX Type S Zero MR
8'03.849 Joe Racer 1999 Honda NSX Type S MR
8'04.851 PRF 1992 Honda NSX Type R MR
8'05.567 Wolfi 1970 2002 Honda NSX Type R MR
8'05.573 Kaneda 2002 Honda NSX Type R MR
8'05.830 Joe Racer 1995 Honda NSX MR
8'06.090 Joe Racer 1993 Honda NSX MR
8'06.384 Joe Racer 1990 Honda NSX MR
8'08.120 jafa 2002 Honda NSX Type R MR
8'11.075 Duke of Nemesis 2002 Honda NSX Type R MR
8'12.863 PRF 1990 Honda NSX MR
8'14.758 Joe Racer 1997 Honda NSX Type S Zero MR
8'17.647 TheForce 1997 Honda NSX Type S Zero MR
8'23.607 Dorkboy 2002 Honda NSX Type R MR
8'25.219 racingt40 2002 Honda NSX Type R MR
8'25.738 SiR_Bryce 2002 Honda NSX Type R MR
9'30.112 Luncho Carlrissian 2002 Honda NSX Type R MR