Porsche 718 Cayman GT4 RS vs BMW M2
Compare the Porsche 718 Cayman GT4 RS vs BMW M2. The BMW M2 is £46,000 cheaper. The Porsche 718 Cayman GT4 RS is 0.7s quicker to 60mph. The BMW M2 is more fuel efficient. Full performance, cost & ownership breakdown.
The Porsche 718 Cayman GT4 RS is priced from £115,000, powered by a 4.0L Flat-6, producing 493 hp, with 450 Nm of torque, reaching 0-60 mph in 3.4s, a top speed of 196 mph, sent to the road via rear-wheel drive. The BMW M2 is priced from £62,000, powered by a 3.0L Twin-Turbo I6, producing 453 hp, with 550 Nm of torque, reaching 0-60 mph in 4.1s, a top speed of 177 mph, sent to the road via rear-wheel drive.
The Porsche 718 Cayman GT4 RS offers a 125-litre boot, a usable front boot, runs on petrol, returns around 23 mpg, is covered by a 4yr / 50k mi warranty. The BMW M2 offers a 390-litre boot, runs on petrol, returns around 28 mpg, is covered by a 3yr / unlimited mi warranty.
On cost of ownership, the BMW M2 is £46,000 cheaper than its rival, the BMW M2 costs less in annual maintenance (£1,300 versus £1,000), the BMW M2 is the more fuel-efficient choice, a full tank costs around £70 for the Porsche 718 Cayman GT4 RS and £70 for the BMW M2.
Driving Character: Porsche 718 Cayman GT4 RS vs BMW M2
The Porsche 718 Cayman GT4 RS represents the apex of the 718 platform, transplanting a 493hp naturally aspirated flat-six from the GT3 into a mid-engine chassis. The result is a machine with staggering agility and a turn-in response that makes even the standard GT4 feel soft. The chassis balance is dominated by rear-end grip and sharp, responsive steering that provides constant feedback. It is an extreme instrument, demanding a high level of expertise to truly extract its full potential. The power delivery is frenetic, culminating in a high-revving wail that defines the car's racing-inspired character.
The G87 M2 delivers a classic, analogue-inspired driving experience refined by modern geometry. Its 3.0-litre twin-turbo straight-six provides relentless, linear torque that dominates the chassis. The short wheelbase allows for an aggressive, pointy turn-in that invites the driver to play with the car’s balance through mid-corner. While the steering is naturally heavy, it offers sufficient clarity to manage the rear-driven power delivery with confidence. It excels in delivering a raw, engaging experience that feels more mechanical and connected than its larger, heavier siblings, making it an ideal choice for the dedicated enthusiast.
Head-to-head, the division is clear: the Porsche 718 Cayman GT4 RS takes our 0-100 driving character grading, 96 against 90. Characteristic of the Porsche 718 Cayman GT4 RS: GT3-derived engine in the lightest, most track-focused Cayman ever. For the BMW M2: Tossable, engaging chassis widely regarded as one of BMW's best driver's cars. In outright terms it is 493 hp against 453 — a 40 hp gap — and the Porsche 718 Cayman GT4 RS reaches 60 mph 0.7s sooner.
Interior & Cabin: Porsche 718 Cayman GT4 RS vs BMW M2
The interior is a study in weight reduction, featuring CFRP door panels, lightweight door pulls, and carbon bucket seats that lock the driver in place. The presence of the standard roll bar behind the seats signals its intent, creating a sparse, motorsport-focused atmosphere. Sound deadening is intentionally minimal, allowing the mechanical symphony—and the roar of the intake located just behind the driver's head—to flood the cabin. It is not designed for luxury or comfort, but rather as an extension of the driving experience, prioritising tactical feedback and material efficiency above all else.
The cabin environment is heavily focused on driver engagement, featuring the modern BMW Curved Display and iDrive 8 infotainment, which offer vast customisation for performance settings. The build quality is robust, with high-quality materials applied to every touchpoint. While the sport seats provide excellent lateral support for spirited driving, the rear bench remains a tight space suitable primarily for short trips or additional storage. Ergonomically, the layout is near-perfect, ensuring that vital controls are always within reach during high-intensity driving, even if the digital interface occasionally hides complex settings beneath layers of menus.
Head-to-head, the division is clear: the BMW M2 takes our 0-100 interior & cabin grading, 50 against 78. Characteristic of the Porsche 718 Cayman GT4 RS: Stripped-back, motorsport-focused cockpit. For the BMW M2: Tech-forward, well-finished cabin for its class.
Daily Usability: Porsche 718 Cayman GT4 RS vs BMW M2
Daily utility is significantly compromised by the track-oriented nature of the GT4 RS. The suspension is exceptionally firm, making it punishing on all but the smoothest road surfaces, and the lack of sound insulation makes it unsuitable for long, tedious commutes. Despite this, the front and rear trunks remain available for storage, and the inclusion of a front-axle lift system helps navigate urban obstacles. While it is technically possible to drive to the track, the RS experience is best reserved for spirited road use or dedicated circuit days rather than routine errands.
In the urban environment, the M2 feels manageable due to its relatively compact dimensions, making it far easier to place on narrow British B-roads than the larger M3 or M4. However, the suspension is undeniably firm, transmitting significant road-surface feedback that can become tiring over long-distance commutes. The 390-litre boot provides sufficient space for a weekend getaway, although the tight rear-seat access limits its utility for families. Overall, it manages the transition from a focused track machine to a usable daily driver quite well, provided the driver accepts the compromise of a sporting ride quality.
Head-to-head, the division is clear: the BMW M2 takes our 0-100 daily usability grading, 35 against 65. Characteristic of the Porsche 718 Cayman GT4 RS: Usable but clearly built for track days over commuting. For the BMW M2: Most agile, easiest-to-park M car for city use. that means 125 litres of boot space against 390, plus a usable front boot in the Porsche 718 Cayman GT4 RS, and everyday running costs that favour the BMW M2 at the pumps.
Ownership: Porsche 718 Cayman GT4 RS vs BMW M2
Owning a 718 Cayman GT4 RS is a high-stakes proposition, with high purchase prices and significant service costs reflecting its status as a low-volume, specialised performance vehicle. Values have appreciated rapidly, as the model occupies a unique space in the modern Porsche lineup. Owners benefit from the comprehensive Porsche Motorsport support network, which is essential for managing RS-specific components that are more expensive and harder to source than standard parts. It is a collector's dream, provided the owner acknowledges the substantial overheads and the demanding nature of maintaining a high-performance track machine.
The M2 benefits from a massive support network via the BMW dealer and specialist community, ensuring that servicing remains predictable and parts availability is high. Residual values are particularly strong for this generation due to the car’s reputation as one of the last pure, compact, rear-wheel-drive performance machines. While annual maintenance costs are competitive for the performance bracket, owners should keep an eye on brake pad and run-flat tyre wear, which escalate quickly with spirited use. It remains an excellent choice for those seeking a modern performance icon with long-term reliability and high resale potential.
Head-to-head, the division is clear: the Porsche 718 Cayman GT4 RS takes our 0-100 ownership grading, 78 against 78. Characteristic of the Porsche 718 Cayman GT4 RS: Mechanically simple, Porsche-grade reliability. For the BMW M2: Backed by strong BMW reliability and lower running costs than the M3/M4. On the wallet the two diverge at £115,000 versus £62,000 — a £53,000 difference, with annual maintenance of £1,300 against £1,000, and warranty cover of 4yr / 50k mi versus 3yr / unlimited mi.