RUF SCR Targa vs Porsche 924 Oettinger vs BMW 630 vs VW Golf vs Mercedes 280E AMG vs Opel Kadett vs Audi 80 vs Fiat 131 vs Alfa-Romeo Giulietta (Auto Motor und Sport mag., 11/1980, Deutsch)

Alfa Romeo, AUDI, BMW, FIAT, Mercedes, Opel, Porsche 924, Ruf, VW
  3586 

Porsche 997 GT2 vs Mercedes SL63 AMG vs Lambo Gallardo LP560-4 (Журнал Автопанорама, 11/2008)

Lamborghini, Mercedes, Porsche 997
  3033 

Porsche 997 Turbo S Mk II vs Mercedes SLS AMG vs Wiesmann GT MF5 vs Nissan GTR vs Lexus LFA vs Lambo Gallardo LP570-4 Superleggera vs Ferrari 458 (Autobild Sportcars mag., 10-11/2010, Deutsch)

Ferrari, Lamborghini, Lexus, Mercedes, Nissan, Porsche 997, Wiesmann
  2262 

Porsche 997 Turbo Mk I Cabrio vs BMW M6 Cabrio vs Lambo Gallardo Spyder vs Mercedes SL55 AMG (Autobild Sportcars mag., 11/2007, Deutsch)

BMW, Lamborghini, Mercedes, Porsche 997
  1919 

Porsche 997 Turbo S Mk II vs Aston Martin V12 Vantage vs Audi R8 5.2FSI vs Ferrari 458 vs Mercedes SLS AMG (Car & driver mag., 11/2010)

Aston Martin, AUDI, Ferrari, Mercedes, Porsche 997
  2337