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SM500 Radical


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The car is called a Radical SM 500. The owner of Spring Mountain, John Morris, had it custom built for him as the most powerful Radical they have made so far. So they called it SM for Spring Mountain and 500 for the horse power. Although, we’ve found the engine actually makes 520hp. There are not many of these made so it's a really special car!


SM500 Overview

Length: 4.10m

Height: 1.04m

Width: 1.79m

Min Weight: 680kg

Max Speed: 178mph

0-60mph: 2.7 sec

50-100mph: 4.3 sec

Braking G's: 2.0

Cornering G's: 2.5

Engine: 3.2Liter Powertec producing 520HP


Two-seater, powder-coated carbon steel spaceframe chassis with integral safety cell - complying with FIA Production Sports Car Safety Structure test

Aluminium honeycomb front crash structures complying with FIA Production Sports Car Crash Test

Removable forward facing steel chassis stays

77 litre foam-filled aluminium fuel tank mounted behind the driver within the safety cell

Fully adjustable pedal box

Driver seat-belt complying with FIA requirements

Eight butterfly fuel induction system with composite ram-air box

Integral bell-housing and engine oil tank

Lightweight steel flywheel and twin plate clutch

Stainless steel manifold and exhaust system with twin silencer

Powertec P-Tec six-speed sequential transaxle, interchangeable gear sets with torque-biasing limited-slip differential for seamless diff lock-up.

Powertec transmission oil pump and radiator.

Fully adjustable Nik suspension system front and rear - unequal length top and bottom wishbones, fabricated uprights, forged steel centre lock hubs and interchangeable anti-roll links

Single-adjustable, mono-tube, titanium-bodied, low-friction, coil-over dampers

Radical four-pot calipers front and rear

280mm dia. × 25mm, 48 vane floating front and rear discs.

Radical centre lock, cast aluminium wheels - 8" × 15" dia. front and 10.5" × 16" dia. rears

Dunlop purpose-designed slick tyres.

Six-piece lightweight fibre-glass bodywork with self-coloured gel coat finish

High downforce composite front diffuser with removable, high nose, low-drag front section

Central brake cooling duct connected to carbon composite brake cooling shrouds.

Wheel arch louvres front and rear

Rear view mirrors

Quick-release front cockpit fairing

Composite side pods with air management system and radiator inlet

Composite side-skirts

Removable composite tail section with integral engine induction intake and ventilation grilles.

Carbon composite bi-plane rear wing with aluminium end plates

High-downforce composite rear diffuser

Rear brake lights

Moulded composite, high-sided, drivers and passenger seats with adjustable mounts.

Carbon-composite dash surround

Quick release steering wheel with collapsible column

Radical display unit incorporating an LED analogue rev counter, gear indicator, shift light, four LCD displays of engine parameters/speed and warning lights

Dash-mounted brake bias adjuster.





Vehicle has only a couple of hours on the engine, brake rotors and pads were recently replaced. This vehicle is ready to drive and drive fast now! The car will include 2 sets of wheels and tires. $100,00 or Best Offer. Make me an offer I can't refuse!

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