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Hyundai unveils mid-engined RM15 concept

Hyundai RM15 concept front quarter

Hyundai has unveiled its latest mid-engined concept called the RM15, which stands for Racing Midship 2015.

Caught undergoing testing a few days ago in Korea, the aggressively-style high-performance coupe is created to make a confident statement about Hyundai’s passion for performance and its expertise in the development of advanced vehicle technologies.

The RM15 features an aluminium spaceframe as its core structure, with a covering of light, stiff body panels formed in carbon-fibre reinforced plastic (CFRP), which together help to achieve a significant weight saving compared to a conventional all-steel vehicle. The body panels are painted in the signature colours of the company’s ‘N’ (pale blue, black, red and Hyundai mid-blue) which also feature on the Hyundai WRC i20 rally car.

Based on the Veloster RM shown at last year’s Busan Motor Show in Korea, the new RM15 features a host of modifications that boost the latest model’s performance, handling and efficiency. Total weight is reduced (to 1,260 kg – a saving of 195kg compared to an all-steel structure), weight distribution is more evenly balanced (43% front, 57% rear), the centre of gravity is just 491mm from the ground and aerodynamic downforce is 24kg at 200kph, aided by a competitive lift-coefficient.

Power comes from Hyundai Motor’s Theta 2.0-liter T-GDI engine mounted transversely behind the two-seater cabin and ahead of the rear axle, ensuring optimised weight distribution and a low moment of inertia for handling agility and high levels of traction. New, vertical air-intake slots in the flanks of the car, ahead of the rear wheel arches, increase cooling airflow within the engine bay and enhance powertrain efficiency.

The four-cylinder turbocharged petrol engine generates 220kW at 6,000rpm and drives the rear wheels through a six-speed manual transmission. Strong torque delivery 383Nm at 2,000rpm helps to reduce the 0-100 km acceleration time to just 4.7 seconds.

Hyundai RM15 concept side

Integrated sub-frame (front & rear) and a WRC-inspired roll-cage add extra stiffness to the structure, providing a firm foundation for the aluminium double-wishbone suspension, enabling it to give precise responses and consistent handling characteristics. RM15 rides on stylish 19-inch diameter mono block forged alloy wheels fitted with 235/35 R19 tires (front) and 265/35 R19 tires (rear).

The body panels, named ‘Hybrid Lightweight Body Structure (HLBS)’ is said to provide further demonstration of Hyundai Motor’s expertise with carbon-fibre reinforced plastic structures. With an aluminium core structure and CFRP body panels, the RM15 is light yet extremely strong, with torsional stiffness of 37,800nm/deg.

“The RM15 is another bold statement of the progressive spirit of Hyundai Motor, illustrating what we can achieve when we channel our passion and enthusiasm into a product that is not limited by convention,” comments Joonhong Park, Senior Vice President and head of High Performance Vehicle Development Centre at Hyundai Motor Group.

“I’m very proud to unveil the RM15 at our home motor show, where visitors have become used to seeing Hyundai Motor confidently give expression to its creative and engineering talents and energies. We intend to demonstrate our progress with high-performance technologies with other exciting prototype projects in the near future”.

Hyundai RM15 Concept – Specifications
Body style: Two-door, two-seater, mid-engined high-performance sportscar
Length: 4,220mm
Width: 1,865mm
Height: 1,340mm
Wheelbase: 2,650mm
Engine: Theta 2.0 T-GDI turbocharged gasoline direct injection
Power: 220kW at 6,000rpm
Torque: 383Nm at 2,000 rpm
Transmission:  Six-speed manual
Performance: 0-100kph / 4.7sec
Weight: 1,260kg

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