The MCXtrema features extremely aggressive aerodynamics, including a large front splitter, an adjustable rear wing, a roof-mounted shark fin, and a prominent rear diffuser. The underfloor is completely flat to generate massive downforce at high speeds. The design is unrestricted by any racing regulations, allowing for极致 aerodynamic efficiency.

The MCXtrema's cockpit is entirely designed around the driver, featuring an FIA-certified roll cage, 6-point racing harness, fixed racing bucket seat, and an FIA-spec extinguisher system. The carbon fibre steering wheel has a 5-inch display screen showing speed, revs, water temperature and other data. The passenger seat is optional – the standard version is a single-seater.

Maserati offers a dedicated service called "MCXperience" for the 62 MCXtrema owners. This includes track concierge service, professional driver coaching, Maserati technical team support, and the exclusive MCXlusiva customisation programme with three themes: "Tech Beast", "Corse", and "Speed Beast".

The MCXtrema features a straight-pipe exhaust system (no silencers), producing an extremely wild engine note. At idle, it has a deep NASCAR-like rumble, while under acceleration the sound becomes sharp and piercing – one reviewer described it as "a modern De Tomaso Pantera, ripping calico as you close in on 7,500rpm". Inside the cabin, you also hear the high-pitched whine of straight-cut gears, making the whole driving experience incredibly visceral.

The MCXtrema is not road-legal, so it cannot be registered with a Hong Kong licence plate. Owners would need to rent a circuit (such as Zhuhai International Circuit) to drive it. Furthermore, consumables are extremely expensive: a set of tyres costs around £3,000 (approx. HK$30,000), and on a high-speed circuit, fuel consumption is 3 litres per minute. The body is full carbon fibre, so repair costs would be astronomical if damaged.

Key rivals of the Maserati MCXtrema include other limited-production track-only supercars such as the McLaren 720S GT3X, Porsche 935, and Dallara EXP. Its performance is comparable to GT3 race cars, but with significantly more power (GT3 cars typically have around 550 hp, while the MCXtrema has 740 hp), and without regulation restrictions, the design can be even more extreme. Some reviewers also point out that buying a Porsche 911 Carrera Cup race car for around £230,000 might be a more rational choice.