Genesis G70 3.3T or Mercedes-AMG C63 W205? 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
| Genesis G70 3.3T | Mercedes-AMG C63 W205 | |
|---|---|---|
| Years | 2019– in the US (facelift 2022) | 2015–2021 (coupé and cabriolet later) |
| Engine | 3.3 T-GDi twin-turbo V6 (Lambda II) | 4.0 twin-turbo V8 M177 |
| Stock power | 365 hp / 376 lb-ft (US) | 476 PS (C63) / 510 PS (C63 S) |
Power by stage
| Genesis G70 3.3T | Mercedes-AMG C63 W205 | |
|---|---|---|
| Stock | 365 hp | 476–510 PS |
| Stage 1 | 380–480 whp | 550–611 hp |
| Stage 2 | 430–530 whp | 590–667 hp |
| Stage 3 | 450–650 whp | 700–820 hp |
| Stage 4 | 650–900+ whp | 830–950 hp |
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
| Genesis G70 3.3T | Mercedes-AMG C63 W205 | |
|---|---|---|
| Stage 1 | JB4 $599–$799; flash tunes $495–$1,500 (SleepyTuned, Tork, LAP3); DTE module $349–$799; gearbox tune $150–$1,250 (Burger, Tork, LAP3). | 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). |
| Stage 2 | downpipes $599.99–$819.99 (Circuit Werks) or $695.75 (ARK); intake $379–$629.99 (BMS, aFe, K&N); intercooler $779 (BMS) or $1,499.95 (Mishimoto); Burger 450 whp package $1,299–$1,399. | 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. |
| Stage 3 | hybrid turbos $1,649.99 with core exchange (Pro Xe), $3,495 (TurboKits TK700) or €2,539.09–€3,108.20 (Muchboost); head studs $695.50 (Tork); port injection $1,999 (BMS). | 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). |
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 Genesis G70 3.3T reaches 650–900+ whp and the Mercedes-AMG C63 W205 830–950 hp.