Mercedes-AMG C63 W205 or BMW M3 / M4 F80 / F82? They're rivals, so owners often weigh one against the other. Here's how far each one goes, using the makers' and tuners' own figures from our two guides.
At a glance
| Mercedes-AMG C63 W205 | BMW M3 / M4 F80 / F82 | |
|---|---|---|
| Years | 2015–2021 (coupé and cabriolet later) | 2014–2020 |
| Engine | 4.0 twin-turbo V8 M177 | 3.0 twin-turbo inline-six S55 |
| Stock power | 476 PS (C63) / 510 PS (C63 S) | 425 hp / 406 lb-ft (Competition 444 hp) (US) |
Power by stage
| Mercedes-AMG C63 W205 | BMW M3 / M4 F80 / F82 | |
|---|---|---|
| Stock | 476–510 PS | 425 hp |
| Stage 1 | 550–611 hp | 500–540 hp |
| Stage 2 | 590–667 hp | 530–575 hp |
| Stage 3 | 700–820 hp | 620–710 hp |
| Stage 4 | 830–950 hp | 800–900 whp |
Careful: one car's figures are at the wheels (whp) and the other's at the engine (hp), so they aren't directly comparable. Convert with the crank to wheel calculator.
Typical parts cost
| Mercedes-AMG C63 W205 | BMW M3 / M4 F80 / F82 | |
|---|---|---|
| Stage 1 | remaps €990 (BR-Performance), £720–£1,440 (Litchfield) or $1,999–$3,280 (Weistec, RENNtech); CPC upgrade for 2019-on cars $1,699 (Weistec); plug-in modules $767 (RaceChip) or €3,799 (DTE). | $579–$924 (JB4, bootmod3, Dinan, Active Autowerke); MHD €279 licence plus €109 per map pack; €609–€3,743 (RaceChip, Mosselman, G-Power, AC Schnitzer); Dinan+ with warranty $1,750. Pinned crank hub $429–$975 (Mosselman, VAC). |
| Stage 2 | downpipes $3,079 (Weistec) or £2,180.34–£5,746.14 (Milltek, track-only or with sports cats); CSF heat exchanger $749; Weistec airboxes $1,499; RENNtech R1 package $6,880. | downpipes $480–$1,999 (VRSF, Active Autowerke); charge cooler $750–$1,695 (Dinan, CSF); Mosselman remap with downpipes €2,651 before tax. |
| Stage 3 | turbos €2,940.33 before VAT (TTE760+), $2,995 send-in (Pure900) or $5,499 (Weistec W.3); RENNtech turbo packages $13,840–$23,880; fuel pumps $4,280 (RENNtech). | turbos $2,995–$5,685 (Pure) or €4,248 before tax (Mosselman); DCT clutches $2,599; Manhart's full kit €37,500. |
List prices from the guides, before shipping, import tax and fitting. "—" means that guide has no cost line for the stage.
Where each one ends up
At Stage 4 the Mercedes-AMG C63 W205 reaches 830–950 hp and the BMW M3 / M4 F80 / F82 800–900 whp.