Verdict
A
Sports · Germany · 1999-Present
Porsche 911 GT3
Porsche 911 GT3 — spec data and generation history.
Years
1999-Present
Generations
4
Segment
Sports
The road-going 911 with motorsport DNA — high-revving NA flat-six, no turbocharging, no AWD. 996.1 GT3 (1999–2002) — first GT3, M96/76 3.6 NA, 360 bhp. 996.2 GT3 (2003–2005) — bumped to 381 bhp; Mezger flat-six (lifted from 911 GT1 / Cup). 997.1 GT3 (2007–2009) — 415 bhp; 997.1 GT3 RS lighter and racier. 997.2 GT3 (2009–2011) — 435 bhp / 444 bhp RS; 4.0 RS (493 bhp) became the homologation special. 991.1 GT3 (2014–2017) — first PDK-only GT3 (controversial), 9,000 rpm 3.8. 991.2 GT3 (2017–2019) — manual returned alongside PDK, 4.0 NA. 992.1 GT3 (2021–Present) — 9A2 Evo 4.0, 9,000 rpm; Touring spec without rear wing. GT3 RS / Speedster covered separately by trim notes.
What changed
Era-to-era deltas
991 2014-2019 → 992 2021-Present
BHP +10 bhp
Torque +30 Nm
0–60 mph −0.0 s
Top speed +0
MPG +0 mpg
Generations
Click any generation for the full deep dive
1999-2005
996 GT3
→
996.2 GT3 3.6 — 381 bhp, 0-62 in 4.5s.
Verdict
A
BHP
381
0–60
4.5 s
Top
190 mph
MPG
21.0 mpg
Used
£42,000-£90,000
- + First GT3
- + Mezger flat-six (Cup-derived)
- − Track-spec service
- − Specialist parts
2007-2011
997 GT3
→
997.2 GT3 RS 4.0 — 493 bhp, 0-62 in 3.9s.
Verdict
A
BHP
493
0–60
3.9 s
Top
193 mph
MPG
21.0 mpg
Used
£75,000-£500,000
- + Mezger 3.8 / 4.0 NA flat-six
- + RS 4.0 — 600 cars only
- − Manual only — no PDK
- − Track-spec running cost
2014-2019
991 GT3
→
991.2 GT3 RS 4.0 — 513 bhp, 0-62 in 3.2s.
Verdict
A
BHP
513
0–60
3.2 s
Top
193 mph
MPG
22.0 mpg
Used
£90,000-£200,000
- + 9A1 Evo 4.0 — 9,000 rpm
- + 991.2 manual returned
- − 991.1 PDK-only
- − Engine recall on early 991.1 (resolved)
2021-Present
992 GT3
→
992 GT3 RS 4.0 — 518 bhp, 0-62 in 3.2s.
Verdict
A
BHP
518
0–60
3.2 s
Top
184 mph
MPG
21.0 mpg
Used
£140,000-£280,000
- + 9A2 Evo 4.0 — 9,000 rpm
- + Touring (no wing) and RS variants
- − Allocation lottery
- − Premium prices
Known issues by generation
Common faults reported on each generation — useful when shopping the used market.
1999-2005 · 996 GT3
- Mezger engine sealing
- Track-spec service
- Collectability lifts cost
- RMS leak (rare)
2007-2011 · 997 GT3
- Mezger engine cost
- RS 4.0 collectability
- Track tyre wear
- Specialist servicing
2014-2019 · 991 GT3
- Engine recall on early 991.1 (now resolved)
- PDK-only on 991.1 (no manual)
- Carbon brake cost
- Specialist servicing
2021-Present · 992 GT3
- Specialist servicing
- Carbon-ceramic brake cost
- Touring vs RS allocation lottery
- PCM 6/7 software updates
Rivals
Porsche 718 Cayman GT4 RS · BMW M4 CSL · Ferrari 296 GTB · Lamborghini Huracán Tecnica