Ariel has unveiled its most potent and rapid iteration of the Atom, dubbed the 4RR. This latest model boasts an extensively re-engineered Honda-derived 2.0-liter turbocharged four-cylinder engine, propelling it with an impressive 525 horsepower and 406 pound-feet of torque. Such power enables the 4RR to achieve 0-62 mph in a mere 2.4 seconds, hit 100 mph in just 5.1 seconds, and reach a top speed of 175 mph. The vehicle also features a bespoke, hand-built engine with numerous upgraded components, including forged pistons, connecting rods, revised cylinder head geometry, and a competition-grade head gasket, all paired with a Quaife six-speed sequential gearbox. This exclusive, road-legal machine marks the Atom’s 25th anniversary, promising an unparalleled driving experience for a select few.
The Ariel Atom 4RR embodies extreme performance through meticulous engineering and advanced features. Its sophisticated power delivery is complemented by a robust braking system, featuring large 12.2-inch AP Racing ventilated rotors and 11 adjustable ABS settings. The suspension system includes adjustable twin-tube Öhlins dampers, ensuring exceptional handling and stability. With its lightweight construction, cutting-edge engine modifications, and high-performance tires, the 4RR is designed to offer an exhilarating and precise driving experience that pushes the boundaries of open-cockpit sports cars.
Unmatched Power and Engineering Excellence
Ariel's latest creation, the Atom 4RR, sets a new benchmark for performance with its formidable power output and sophisticated engineering. At its heart lies a specially modified 2.0-liter, turbocharged four-cylinder K20C Honda engine, meticulously enhanced to generate a staggering 525 horsepower and 406 pound-feet of torque. This bespoke powertrain allows the Atom 4RR to achieve extraordinary acceleration, rocketing from 0 to 62 miles per hour in an astonishing 2.4 seconds and reaching 100 mph in just 5.1 seconds. The vehicle's top speed of 175 mph further underscores its extreme capabilities, solidifying its position as the fastest and most powerful Atom ever produced.
The engineering behind the Atom 4RR’s engine is a testament to Ariel’s commitment to pushing performance boundaries. Key modifications include closed deck sleeves, custom-designed forged pistons and connecting rods, and a comprehensively revised cylinder head with optimized port geometry. Furthermore, the engine is equipped with an upgraded alloy valve set, enhanced springs and guides, and a bespoke camshaft. A competition-grade head gasket, a race-specification gated oiling system with a high-flow oil pump, a larger turbocharger, a carbon air inlet system, and a new titanium exhaust system contribute to its exceptional performance. This meticulously crafted engine is seamlessly integrated with a Quaife six-speed sequential gearbox, ensuring precise and rapid power delivery for an unrivaled driving experience.
Advanced Driving Dynamics and Exclusivity
Beyond its raw power, the Ariel Atom 4RR boasts advanced driving dynamics, providing drivers with unparalleled control and customization. The vehicle offers three distinct power maps, in addition to its most potent setting. Map 1 delivers 400 horsepower and 280 pound-feet of torque, while Map 2 provides 500 horsepower and 332 pound-feet of torque, allowing drivers to tailor the car's performance to their preferences and driving conditions. Each engine also comes with an individualized dyno graph, confirming its unique performance characteristics. The Atom 4RR is equipped with adjustable twin-tube Öhlins dampers, enabling fine-tuned suspension settings for optimal handling on both road and track.
Stopping power for this high-performance machine is managed by 12.2-inch, two-piece AP Racing ventilated rotors, which are the largest possible fitment for the Atom’s wheels. Drivers benefit from 11 adjustable ABS settings, including an option to disable the system entirely, offering maximum control over braking performance. The car features staggered 16-inch front and 17-inch rear wheels, wrapped in high-performance Yokohama A052 tires, ensuring exceptional grip and agility. Celebrating the Atom's 25th anniversary, the 4RR will be produced in extremely limited numbers, making it a highly exclusive vehicle. Priced at £208,000, or approximately $279,472, this road-legal, open-cockpit sports car represents the pinnacle of Ariel’s engineering prowess and offers an unmatched driving thrill for enthusiasts fortunate enough to acquire one.
