Mercedes-AMG A45 S or Honda Civic Type R FL5? 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 A45 S | Honda Civic Type R FL5 | |
|---|---|---|
| Years | 2019– (facelift 2023) | 2022– (US model year 2023 on) |
| Engine | 2.0 turbo four M139 | 2.0 turbo four K20C1 |
| Stock power | 421 PS / 500 Nm (EU) | 315 hp / 310 lb-ft (US) |
Power by stage
| Mercedes-AMG A45 S | Honda Civic Type R FL5 | |
|---|---|---|
| Stock | 421 hp | 303 whp |
| Stage 1 | 450–510 hp | 320–338 whp |
| Stage 2 | 470–520 hp | 335–361 whp |
| Stage 3 | 525–600 hp | 500–525 whp |
| Stage 4 | 600–650+ hp | 600–750+ 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 A45 S | Honda Civic Type R FL5 | |
|---|---|---|
| Stage 1 | $1,499–$2,580 (Eurocharged, Weistec, RENNtech); gearbox tune $1,000 more; RaceChip €609; EST with a new CPC £1,550 including VAT. | Cobb Accessport $770 or Hondata FlashPro $795; DTE €799; Mishimoto intercooler $1,300. |
| Stage 2 | Weistec downpipe $899 or Milltek £990; water-methanol kit $1,600; EST Stage 2 £2,150–£3,750. | PRL intake $490 and front pipe $429; TSP tune $295 (needs a FlashPro); Hondata fuel system $2,995. |
| Stage 3 | hybrid turbos $2,999 (Weistec) or €1,470–€4,499 before VAT (TTE, MACHGRADE); EST570 £6,995–£8,550. | turbos $2,200–$4,800 (27WON, PRL, Full-Race); PLM's full package $11,995; Exedy clutch £638. |
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 A45 S reaches 600–650+ hp and the Honda Civic Type R FL5 600–750+ whp.