The E63 S wagon's only serious cross-shop is the Audi RS6 Avant, which several owners drove back-to-back and judged floatier and less engaging than the AMG. Commenters name the RS6 and the manual CTS-V wagon as the alternatives, and dismiss the incoming M5 Touring, arguing the E63 holds value as well as the RS6 while driving better.
Rivals — RS6 Avant, CTS-V wagon, and the M5 Touring
Mercedes-Benz E63 AMG (W213) · market