Ring times, that I can find (purely to give a marker, not an exact science this)
Porsche 911 Carrera S - 7:59.00 - Walter Rohrl
Aston Martin V8 Vantage - 8:03.00 - Sport Auto
BMW M6 - 8:07.70 - Sport Auto
Lotus Esprit Sport 350 - 8:13.00 - Sport Auto
Lotus Exige MK1 - 8:42.00 - Sport Auto
Lotus Esprit Turbo SE - 8:58.00 - Sport Auto
As I say this isn't an exact science but it does show the differences that modern cars have. Power is the key issue and where as the Lotus Esprit was a benchmark car in it's day in terms of handling, today it's dated.
Goodwood
Pos Make / Model Time Speed (km/h) Year Power (hp) / Weight (kg) Driven by
1. Lexus LF-A 1:22.62 168 '10 560 / 1609 Lexus
2. Nissan GT-R 1:27.70 159 '08 479 / 1740 Autocar
3. Lotus Exige Cup 260 1:27.80 158 '08 260 / 890 Drivers Republic
4. Lamborghini Murcielago 1:28.60 157 '02 580 / 1800 Autocar
5. Porsche 911 GT3 1:29.20 156 '09 435 / 1376 Autocar
6. Aston Martin V12 Vantage 1:29.70 155 '09 517 / 1680 Autocar
7. Mercedes SLK 55 AMG 1:30.60 153 '06 360 / 1495 Autocar
8. TVR Tamora 1:31.50 152 '01 355 / 1060 Autocar
9. Honda NSX 3.2 1:31.80 151 '97 280 / 1388 Autocar
10. Jaguar XFR 1:32.80 150 '09 510 / 1960 Autocar
11. Lotus Esprit Sport 300 1:33.14 149 '93 306 / 1306 Autocar
12. Honda NSX 3.0 1:33.57 149 '91 274 / 1362 Autocar
13. Ford Focus RS 1:33.90 148 '03 215 / 1290 Autocar
14. Porsche Panamera S 1:33.90 148 '09 400 / 1800 Autocar
15. Lotus Evora 1:34.30 147 '10 280 / 1398 Autocar
16. Toyota Supra RZ 1:34.95 w 146 '94 284 / 1640 Autocar
17. BMW M3 1:35.11 d 146 '93 286 / 1420 Autocar
18. Renault Clio 197 Cup 1:35.70 145 '07 197 / 1220 Autocar
19. Subaru Impreza WRX STi 1:35.80 145 '05 280 / 1500 Autocar
20. Ford Focus RS 1:35.80 145 '09 305 / 1467 Autocar
21. Mini Cooper S 1:35.90 145 '06 174 / 1206 Autocar
22. Porsche 968 Club Sport 1:35.94 d 145 '93 240 / 1324 Autocar
23. Nissan 370Z 1:36.00 145 '09 330 / 1583 Autocar
24. Ford Escort RS Cosworth 1:36.17 145 '94 227 / 1360 Autocar
25. Alfa Romeo 156 GTA 1:36.60 144 '03 250 / 1445 Autocar
26. Renault Clio 172 Cup 1:37.10 143 0 172 / 983 Autocar
27. Ferrari 348TB 1:37.48 143 '89 295 / 1380 Autocar
28. Ford Mondeo ST220 1:37.50 143 '02 226 / 1490 Autocar
29. Mini Cooper S 1:38.10 142 '04 170 / 1115 Autocar
30. MG TF 160 1:38.20 142 '02 157 / 1115 Autocar
31. VW Corrado VR6 1:39.81 139 '91 190 / 1210 Autocar
32. Tesla Roadster 1:39.95 139 '08 252 / 1324 Tesla Motors
33. Caterham 7 HPC 1:40.84 d 138 '90 177 / 575 Autocar
34. Mazda 2 1.5 MZR 1:46.00 131 '07 103 / 1035 Autocar
35. Peugeot 205 GTI 1.9l 1:48.25 128 '86 128 / 875 Autocar
36. Fiat Panda 100HP 1:48.60 128 '06 101 / 950 Autocar