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great stock wins there with the enduro's. You can take this information and use it as a guide. If you find the car not quick enough just add a little power. May not be 200 points but will work the same.
a little snippet. As you can see they are all 200 Pointers
ENDURANCE RACES
Endurance races: Laguna Seca 200 miles
Car: RUF RGT '00 (R1 tyres) / RR / 379HP / 1330kg / 3.5kg/HP / 200 A-spec by Mick777
Car: BMW M3 CSL '03 (R1 tires, oil changed) / 354HP / 1385kg / 3.9kg/HP / 200 A-spec by alhajoth
Car: Proto Motors Spirra 4.6 V8 '04 (R1 tires) / MR / 320HP / 1205kg / 3.8kg/HP / 200 A-spec by alhajoth
Car: RUF 3400S '00 (R1 tyres) / MR / 306HP / 1300kg / 4.2kg/HP / 200 A-spec by ferrari_chris
Car: Renault Clio Sport Trophy V6 24V Race Car '00 (R1 tires, min. downforce) / MR / 298HP / 1150kg / 3.9kg/HP / 200 A-spec by MacTarmac
Car: RUF RGT '00 (R1 tyres) / RR / 379HP / 1330kg / 3.5kg/HP / 200 A-spec by ajbownes
Endurance races: Nurburgring 4hr
Car: Renault Clio Sport V6 24V '01 (Used, no oil, S1 tyres) / MR / 200 A-spec by jdw
Car: Lotus Elise 111S '03 (S1 tires) / MR / 154HP / 806kg / 5.2kg/HP / 200 A-spec by SonicSponic
Car: Alpine A110 1600S '73 (S1 tyres) / RR / 139HP / 715kg / 5.1kg/HP / 200 A-spec by ZeroG
Car: Ford Focus RS '02 (no oil, F/R S1/S2 tyres) / FF / 217HP / 1050kg / 4.8kg/HP / 177 A-spec by Deathclown66
Endurance races: El Capitan
Car: Mercedes SL500 (R230) '02 (used, S2's) / FR / 276HP / 1840kg / 6.7kg/HP / 200 A-spec by mcsqueegy
Car: BMW 330i '05 (S2 tyres) / FR / 255HP / 1525kg / 6.0kg/HP / 200 A-spec by alhajoth
Car: BMW Z4 '03 (Oil changed, S2 tyres) / FR / 239HP / 1365kg / 5.7kg/HP / 200 A-spec by Smallhorses
Car: Lotus Esprit Turbo HC '87 (Tires F/R S2/S1) / MR / 228HP (oil changed, 794.16 miles on car) / 1146kg / 5.0kg/HP / 200 A-spec by Toronado
Car: BMW M3 '04 / FR / 339HP / 1570kg / 4.6kg/HP / 200 A-spec by TurboJ
Car: BMW M3 CSL '03 (oil changed) / FR / 378HP / 1385kg / 3.7kg/HP / 200 A-spec by mprata
Car: Aston Martin Vanquish '04 / FR / 436HP / 1835kg / 4.2kg/HP / 200 A-spec by FLK
Car: Jaguar XKR R-Performance '02 (S2 tyres, no oil) / FR / 396HP / 1735kg / 4.4kg/HP / 200 A-spec by speedy_samurai & Thirdeye
Car: Lotus Motorsport Elise '99 (S1 tires) / MR / 204HP / 700kg / 3.4kg/HP / 200 A-spec by torque998
Car: RUF 3400S '00 / MR / 306HP / 1300kg / 4.3kg/HP / 200 A-spec by fuzzydice
Car: Holden Commodore SS '04 (S2 Tyres) / FR / 328HP / 1658kg / 5.1kg/HP / 200 A-spec by Smallhorses
Car: RUF RGT '00 / RR / 379HP / 1330kg / 3.5kg/HP / 200 A-spec by Rotary Junkie
Car: Lotus Esprit Turbo HC '87 (S2 Tyres, no oil) / MR / 215HP / 1146kg / 5.3kg/HP / 200 A-spec by Smallhorses
Car: Lotus Esprit V8 '02 (S1 tires) / MR / 353HP / 1380kg / 3.9kg/HP / 200 A-spec by alhajoth
Car: Citroen Xsara Rally Car '99 (S1 Tyres, downforce 13/14) / FF (! ) / 295HP / 960kg / 3.3kg/HP / 200 A-spec by Smallhorses
Car: TVR Cerbera Speed Six '97 (S1 tires) / FR / 316HP / 1130kg / 3.6kg/HP / 200 A-spec by alhajoth
Car: Clio Renault Sport V6 24V '00 (S1 tyres, Used, No Oil)/ MR / 225HP/ 1335kg / 5.9kg/HP / 200 A-spec by Open Addict
Car: Tommy Kaira ZZ-S '00 / MR / 192HP / 690kg / 3.6kg/HP / 200 A-spec by Open Addict
I also left the Aussie car in there for you