By Torque, AIWheelTech vehicle & fitment specialist · 2014–2020
TL;DR — The BMW i8 Facelift (2014–2020) uses a 5x112 bolt pattern, 66.6 mm centre bore, M14 x 1.25 bolts torqued to ~140 Nm. It accepts ~7J–8.5J wheels at ET17–ET45 front; staggered setups run 8.5J–9J rear (ET29–ET50).
Overview
The 2018-2020 BMW i8 Facelift is a plug-in hybrid sports car developed by BMW. It was produced in Germany at the BMW Group Plant Leipzig from April 2014 to June 2020, with production ending in this period for both coupé and roadster variants. The model features a transverse mid-engine layout and all-wheel-drive system. This generation saw an increase in battery capacity to 11.6 kWh, enhancing the electric range under NEDC conditions.
Wheel fitment
Bolt pattern (PCD)
5x112
Centre bore
66.6 mm
Bolt / thread
M14 x 1.25 (bolts)
Wheel-bolt torque
140 Nm
Seat type
tapered
Factory setup
staggered
TPMS
direct
Aftermarket wheel sizes — read per position:
Position
Width
Offset
Front
7J–8.5J
ET17–ET45
Rear (staggered)
8.5J–9J
ET29–ET50
As a rule, each extra 1J of width wants roughly +8–10 ET to keep the wheel tucked. The exact offset and any spacer are confirmed by the fit-check.
BMW B38K15T0 1.5L turbocharged I3 engine gasoline + electric mot
hybrid
369 hp
AWD
Concept (2011)
BMW B38K15T0 1.5L turbocharged I3 engine gasoline + electric mot
hybrid
260 hp
AWD
Concept Spyder (2012)
BMW B38K15T0 1.5L turbocharged I3 engine gasoline + electric mot
hybrid
260 hp
AWD
Vision EfficientDynamics (2009)
1.5L turbo-diesel engine + electric motor
hybrid
139 hp
AWD
Performance
Variant
Power
0–62 mph
Top speed
Plug-in hybrid
369 hp
4.4 s
155 mph
Concept (2011)
260 hp
4.6 s
155 mph
Concept Spyder (2012)
260 hp
4.6 s
155 mph
Vision EfficientDynamics (2009)
139 hp
4.8 s
155 mph
Dimensions
Length
4689 mm
Width
1942 mm
Height
1298 mm
Wheelbase
2800 mm
Body styles & production
Body styles
coupé, roadster
Produced
2014–2020
Trim levels
Protonic Red Edition
Factory colours
Protonic RedFrozen Grey Metallic
History & notable variants
The BMW i8 was part of BMW's 'Project i' initiative, introduced as a new brand separate from BMW or Mini. The coupé version debuted at the Frankfurt Motor Show in 2013 and went on sale in Germany in June 2014. A roadster variant was launched in May 2018. Notable changes for this generation included an increase in battery capacity to extend electric range, reaching up to 55 km (34 mi) for the coupé and 53 km (33 mi) for the roadster under NEDC conditions.
Reliability & owner notes
Pros: High-performance plug-in hybrid system, increased electric range in later models, advanced technology features
Cons: Limited production numbers, high price point, complex maintenance requirements
