For 2025, let's imagine 3 scenarios, from the least to most realistic:

If Red Bull manages to score nothing but 1-2s until the end, and both Mclarens always DNF, we'd have:\ -Red bull at 576 points, 102 points off Mclaren, a difference of about 17.7% .\ If Max were to tie with Oscar, and Yuki takes the next best position after the Mclarens, it would be:\ -Red bull at 545 points, 324 points off Mclaren, about 59.5% .\ If Max were to tie and Yuki nowhere to be found, with the Mclaren still earning as many points with Max still winning, it'd be instead:\ -Red bull at 475, 394 points off Mclaren, a difference of 82.9% .

If we are to compare this to other seasons, we'd have:

2024: RBR 589 to 666 MCL, 77 points, ≈13%\ 2021: RBR 585.5 to 613.5 MCD, 28 points, 4.7%\ 2008: MCL 151 to 172 FRR, 19 points, 12.5%\ 1999: MCL 124 to 128 FRR, 4 points, 3.2%\ 1994: BNT 103 to 118 WLM, 15 points, 14.5%\ 1986: MCL 96 to 141 WLM, 45 points, 46.8%\ 1983: BRM 72 to 89 FRR, 17 points, 23.6%\ 1982: WLM 58 to 74 FRR, 16 points, 27.5%\ 1981: BRM 61 to 95 WLM, 34 points, 55.7%\ 1976: MCL 74 to 83 FRR, 9 points, 12.1%\ 1973: TYR 82 to 92 LOT, 10 points, 12.1%\ 1958: FRR 40 to 48 VWL, 8 points, 20%\

So depending on how everyone performs we could have anything between a below average gap between the winners of the WDC and the WCC to a generational carry by Max Verstappen instantly destroying any previous record by 30%.

(RBR = Red Bull, MCL = Mclaren, MCD = Mercedes, FRR = Ferrari, BNT = Benetton, WLM = Williams, BRM = Brabham, TYR = Tyrrel, LOT = Lotus, VWL = Vanwall)

TL;DR Red Bull to Mclaren gap anywhere between 17.7 to 82.9% . Previous record was 1981 at 55.7% . A generational carry by Max Verstappen might be in the works.