Why are the RS5 and M5 so heavy, even when compared to other PHEVs?
Everyone knows that the New RS5 and M5 are stupidly heavy, partly due to the PHEV system. That is not my question. I want to know why are they so heavy, even compared to other PHEV’s? The 2026 Volvo XC90 PHEV, weighs about 5,100 lbs. The v60 polestar plug in weighs 4,500 lbs. So, a seven seater huge SUV, still with a plug, is 100 lbs lighter than the RS5 and 300 lighter than the M5. A car (somewhat) comparable to the RS5 with the PHEV system is 700 lbs lighter. I know the Volvos are 4 bangers, but still. Why so heavy? #cars source