I have been spending [too much] time using rubber band tricks and Special Stage Route X. First thing, PP stops decreasing for practical or theoretical purpose after 16,300 km. Probably. Had the Red Bull X2014 drive 49,669 km and it didn't lose any PP after 20k km. I think it didn't lose any PP after 17k km, but I didn't check every 1k km either. Most cars were driven less than 25k km. But more than 17k km for *most* cars. So here is a list of absolute [?] lowest PP numbers for the best cars in GT6, remember that increasing weight by maximum and changing ballast position sometimes decrease the PP even more. Red Bull X2014 Standard: 750 PP Red Bull X2011 Prototype: 827 PP SRT Tomahawk X Vision: 850 PP SRT Tomahawk GTS-R Vision: 714 PP SRT Tomahawk S Vision: 613 PP Formula Gran Turismo 710 PP Nissan R89C '89: 572 PP Pescarolo Courage Judd GV5 '04: 558 PP Suzuki V6 Escudo Pikes Peak: 555 PP Mazda 787B '91: 549 PP Toyota GT-One TS020 '99: 547 PP Peugeot 905B Evo Bis LM: 545 PP AMG Mercedes CLK-LM '98: 540 PP BMW McLaren F1 GTR Race Car: 507 PP Lexus LF-LC GT Vision: 502 PP Toyota FT-1 Vision: 513 PP Nissan GT-R LM Nismo '15: 523 PP Nissan GT-R Concept LM RC: 500 PP BMW Vision: 500 PP Volkswagen GTI Supersport Vision: 500 PP Subaru VIZIV GT Vision: 500 PP Mitsubishi XR-PHEV Vision: 497 PP Mazda LM55 Vision: 567 PP Peugeot Vision: 569 PP Lotus 97T '85: 737 PP Think I actually got most of the [very] interesting cars included [except Pescarolo C60 Hybride] (I know), some cars not included [apart from credits issue] is because they are not fast enough regardless of PP value.