Porsche 911
Porsche 911 — spec data and generation history.
The most influential sports car of the past 60 years. Five post-1996 generations covered: 993 (1994–1998) — last air-cooled, M64 flat-six. 996 (1998–2004) — first water-cooled, fried-egg headlights, M96 flat-six (IMS bearing risk). 997 (2004–2012) — return to round headlights, M97 (.1) and 9A1 DFI (.2) flat-six. 991 (2012–2019) — first turbo Carrera (.2), 9A2 turbo flat-six. 992 (2019-Present) — current, MMB platform, 992.2 facelift 2024 added T-Hybrid (Carrera GTS). GT3 / Turbo / Turbo S covered separately. AWD = Carrera 4 / 4S / Turbo. RWD = Carrera / Carrera S / Carrera T.
What changed
Era-to-era deltas
Generations
Click any generation for the full deep dive

993
Carrera S 3.6 — 282 bhp, 0-62 in 5.4s.
- + Last air-cooled 911
- + M64 flat-six
- − Air-cooled service cost
- − Tiptronic mechatronic

996
Carrera 4S 3.6 — 320 bhp, 0-62 in 5.0s.
- + First water-cooled 911
- + Cheap entry
- − IMS bearing risk
- − Fried-egg headlights

997
Carrera 4 GTS 3.8 — 408 bhp, 0-62 in 4.4s.
- + Round headlights returned
- + 997.2 (DFI) post-2008 fixed IMS
- − IMS bearing on .1 cars
- − Coolant pipe (early)

991
Carrera 4 GTS 3.0 TT — 444 bhp, 0-62 in 3.6s.
- + First turbo Carrera (.2)
- + 9A2 flat-six TT
- − Carbon build-up
- − PDK mechatronic

992
Carrera GTS T-Hybrid — 534 bhp, 0-62 in 3.0s.
- + 992.2 facelift T-Hybrid (Carrera GTS)
- + PDK 8DCT / 7MT
- − Premium pricing
- − PCM 6 / 7 latency
Known issues by generation
Common faults reported on each generation — useful when shopping the used market.
- Air-cooled service costs
- Top engine mount
- Tiptronic mechatronic
- Collectability lifts cost
- IMS bearing failure
- RMS oil leak
- Plastic rear window pre-2002
- Fried-egg headlights polarising
- IMS bearing (.1 cars)
- Coolant pipe leaks
- PDK initial issues
- Cylinder bore scoring (rare)
- 9A2 turbo (.2) — too new for issues
- PDK 7DCT mechatronic
- PCM 4 software
- Carbon build-up
- PCM 6 / PCM 7 latency
- PDK mechatronic
- New gen reliability data
- T-Hybrid (Carrera GTS post-2024) — too new
Rivals
BMW 8 Series · Mercedes-AMG GT · Porsche 718 Cayman · Aston Martin Vantage
