The Toyota GR Yaris (Gen 1, 2020–2023) is rated 257 hp (DIN 261 PS / 192 kW (UK sheet prints 257 bhp); Japan 200 kW / 272 PS · UK market) at 6,500 rpm and weighs 2,822 lb (UK kerb weight, minimum (1,280–1,310 kg)), or 11 lb/hp. On enthusiast estimates its stock internals are taken to about ~420 hp, the fuel system to around ~360 hp, and the stock turbo(s) are taken to about ~320 hp. Below: the sourced spec sheet, the limit sheet carbuildcheck analyzes against, and the platform's community-documented weak points.
Units
01 Spec sheet sourced
EngineG16E-GTS · 1,618 cc · I3
Engine codeG16E-GTS
Bore × stroke87.5 × 89.7 mm
Compression10.5:1
Inductionsingle-scroll ball-bearing turbo
Fuel systemdual (D-4ST direct plus port)
Rated power257 hp · DIN 261 PS / 192 kW (UK sheet prints 257 bhp); Japan 200 kW / 272 PS · UK market @ 6,500 rpm
Torque266 lb-ft @ 3,000–4,600 rpm
Redlinenot sourced in this audit
Stock boostnot sourced in this audit
Transmission6MT
DrivetrainAWD
Curb weight2,822 lb · UK kerb weight, minimum (1,280–1,310 kg) · 11 lb/hp
GenerationXPA16 (first generation); the 2024 evolved car is rated 280 PS (UK) / 304 PS (Japan) · 2020–2023 (UK 261 PS DIN; Japan 272 PS) · pre-facelift (before the evolved (Toyota's 2024 wording), Toyota’s term for the facelift)
rotating assembly ceiling · fails first: rods and pistons · 98 RON · no named source: site planning estimate · same engine as the GR Corolla; site planning figure
Induction ceiling~320 hp
stock turbo / supercharger ceiling · fails first: stock turbo out of efficiency · 99 RON · source: Litchfield Motors, GR Yaris power upgrades · Litchfield stage 1 = 320 bhp on 99 RON (t1); the site plans on that figure
Fuel system~360 hp
stock fuel-system ceiling · fails first: HPFP · 98 RON · no named source: site planning estimate · site planning figure; no named source in this audit
Clutch (manual)~330 hp
stock clutch torque capacity · fails first: stock clutch slip · no named source: site planning estimate · site planning figure; no named source in this audit
Cooling (sustained)~360 hp
thermal ceiling for sustained load · fails first: intercooler heat soak · no named source: site planning estimate · site planning figure; no named source in this audit
Tuning limitsenthusiast estimates, crank hp on the stated fuel; sources: Litchfield Motors, GR Yaris power upgrades; method: the analyzer plans on the lower bound of each range
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