Swiss aftermarket Porsche performance specialist Sportec has made its Veyron-baiting SPR1 even faster by affixing an "R" to the badging.Porsche enthusiasts are well acquainted with the Sportec brand. The company’s hypercar-humbling SPR1 has been around since 2006 and is based on Zuffenhausen's 911 Turbo.Over the last few years Sportec has managed to swell the SPR1’s peak power output from 590- to 630kW, quite an improvement over the current 911 Turbo's 368kW. Plainly, Sportec’s SPR1 is the fastest strain of 911 Turbo around. It may be Swiss, but it is hardly neutralYou might wonder what the SPR1R can possibly do to heighten the Sportec dynamic experience even further? Well, as Porsche tradition dictates any "R" suffix denotes a reduction in mass. Therefore, it is hardly surprising to find the SPR1R is a lightweight version of Sportec's SPR1.To this end Sportec’s technicians have trimmed 50kg off the SPR1’s licensing mass by replacing key surface components (doors and bonnet) with composite items. The net result is a 1 295kg 911 Turbo with very trick adaptive damping, ceramic brake rotors, roll cage and a power-to-weight ratio of 488kW per ton.With a power-to-weight ratio comfortably superior to Bugatti’s Veyron you would expect cartoonish performance statistics from the SPR1R. Sportec’s fastest car yet obliges by running a 0-100km/h time of 3 seconds, passing 300km/h 15 seconds later before buffering against the physics of aerodynamic drag at 380km/h. Succinctly – it makes Porsche’s 911 GT2R appear a trifle slow…As a product of dynamic harmony the SPR1R is engineered to a level of typical Swiss excellence. Considering the velocities it is capable of the SPR1R gains a flat carbon fibre under tray, adjustable front lip spoiler and ornate rear wing to ensure optimal high speed stability.Suspension components are recast in lighter materials, whilst Bilstein dampers combine with Porsche’s PASM electronics to ensure composure. The 3.6l flat-six engine gains larger injectors, a carbon ram-air induction system, exotically crafted (not street legal) performance exhaust plumbing, very liberal ECU control parameters and titanium conrods running off a forged crankshaft. So, if you require a swifter all-wheel drive alternative to Porsche’s 911 GT2R widow-maker -Sportec will happily oblige. Pricing for the SPR1R starts at the wrong side of €500 000 though.