BMW M8 Competition vs Porsche 911 Targa 4 GTS
Compare the BMW M8 Competition vs Porsche 911 Targa 4 GTS. The BMW M8 Competition is £10,000 cheaper. The BMW M8 Competition is 0.3s quicker to 60mph. The Porsche 911 Targa 4 GTS is more fuel efficient. Full performance, cost & ownership breakdown.
The BMW M8 Competition is priced from £135,000, powered by a 4.4L Twin-Turbo V8, producing 617 hp, with 750 Nm of torque, reaching 0-60 mph in 3.0s, a top speed of 190 mph, sent to the road via all-wheel drive. The Porsche 911 Targa 4 GTS is priced from £145,000, powered by a 3.0L Twin-Turbo Flat-6, producing 473 hp, with 570 Nm of torque, reaching 0-60 mph in 3.3s, a top speed of 193 mph, sent to the road via all-wheel drive.
The BMW M8 Competition offers a 420-litre boot, runs on petrol, returns around 23 mpg, is covered by a 3yr/unlimited mi warranty. The Porsche 911 Targa 4 GTS offers a 132-litre boot, a usable front boot, runs on petrol, returns around 26 mpg, is covered by a 4yr/50k mi warranty.
On cost of ownership, the BMW M8 Competition is £10,000 cheaper than its rival, both require around £1,500 per year in maintenance, the Porsche 911 Targa 4 GTS is the more fuel-efficient choice, a full tank costs around £85 for the BMW M8 Competition and £85 for the Porsche 911 Targa 4 GTS.
Driving Character: BMW M8 Competition vs Porsche 911 Targa 4 GTS
Head-to-head, the division is clear: the BMW M8 Competition — 617hp twin-turbo V8; M8 Competition the most powerful BMW ever in production; the Porsche 911 Targa 4 GTS — 473hp 3.0L Twin-Turbo Flat-6; AWD delivers strong, purposeful performance. Characteristic of the BMW M8 Competition: M xDrive AWD with Sport mode rear-bias; fast yet planted in all conditions. For the Porsche 911 Targa 4 GTS: AWD configuration shapes handling balance and traction character. In outright terms it is 617 hp against 473 — a 144 hp gap — and the BMW M8 Competition reaches 60 mph 0.3s sooner.
Interior & Cabin: BMW M8 Competition vs Porsche 911 Targa 4 GTS
Head-to-head, the division is clear: the BMW M8 Competition — Premium GT cabin; finest materials in the M range outside of i8; the Porsche 911 Targa 4 GTS — Porsche interior quality standards applied; driver-focused layout. Characteristic of the BMW M8 Competition: Active noise cancellation and heated everything; long-distance comfort excellent. For the Porsche 911 Targa 4 GTS: Porsche materials and design language carried through comprehensively.
Daily Usability: BMW M8 Competition vs Porsche 911 Targa 4 GTS
Head-to-head, the division is clear: the BMW M8 Competition — 420L boot and 2+2 seating; among the most practical cars near this power level; the Porsche 911 Targa 4 GTS — Performance character adapted for road-legal everyday use. Characteristic of the BMW M8 Competition: Comfort mode transforms the M8 for relaxed motorway use. For the Porsche 911 Targa 4 GTS: Porsche provides good service and support infrastructure. that means 420 litres of boot space against 132, plus a usable front boot in the Porsche 911 Targa 4 GTS, and everyday running costs that favour the Porsche 911 Targa 4 GTS at the pumps.
Ownership: BMW M8 Competition vs Porsche 911 Targa 4 GTS
Head-to-head, the division is clear: the BMW M8 Competition — BMW reliability in a high-performance package; better durability track record than rivals; the Porsche 911 Targa 4 GTS — Porsche dealer network supports this model comprehensively. Characteristic of the BMW M8 Competition: M8 Competition depreciation controlled; used market values solid. For the Porsche 911 Targa 4 GTS: Residuals reflect market desirability and production volume. On the wallet the two diverge at £135,000 versus £145,000 — a £10,000 difference, and warranty cover of 3yr/unlimited mi versus 4yr/50k mi.