In a Porsche Carrera, at what speed does the fin come up?

The Mercedes-Benz SLR McLaren compared to Bugatti veyron 16.4, Porsche Carrera GT and others on race track?

• The Mercedes-Benz SLR McLaren Technical highlights. 1) The SLR features Sensotronic, a type of brake-by-wire system. 2) The SLR features active aerodynamics; there is a spoiler mounted on the rear integral air brake flap. The spoiler increases downforce depending on its angle of elevation (angle of attack). At speeds above 95 km/h (59 mph) the spoiler/brake automatically raises to 10 degrees (15 in 722 edition), when demanded via the driver's switch, the elevation can be increased to 30 degrees (35 in 722 version) for increased rear downforce, at the cost of increased steady state drag, also when the driver applies the brakes the spoiler raises.However if the driver does not apply the brakes the spoiler will not raise. 3) The SLR sports a 232 kg (510 lb) hand-built 5,439 cc (5.439 L; 331.9 cu in), supercharged, all-aluminium, SOHC V8 engine. The cylinders are angled at 90 degrees with three valves per cylinder and lubricated via a dry sump system. The compression ratio is 8.8:1 and the bore and stroke is 97 millimetre (3.82 in) and 92 millimeters (3.62 in), respectively. The Lysholm-type twin-screw supercharger rotates at 23000 revolutions per minute and produces 0.9 bar (13 psi) of boost. The compressed air is then cooled via two intercoolers. The engine generates a maximum power of 626 PS (460 kW; 617 hp)@6500rpm and maximum torque of 780 N·m (580 lb·ft)@3250-5000rpm. Unlike most of its contemporaries, its engine is front-mid mounted. McLaren took the original concept car designed by Mercedes and moved the engine 1 metre (39.4 in) behind the front bumper, and around 50 centimetres (19.7 in) behind the front axle. They also optimized the design of the center firewall. 4) The SLR uses AMG SPEEDSHIFT R 5-speed automatic transmission with 3 manual modes. For durability Mercedes selected a 5-speed transmission rather than their 7-speed gearbox. 5) The car uses carbon fibre for its entire body construction in an attempt to keep the weight low. Despite CFRP materials the total curb weight is 1,750 kg (3,858 lb). McLaren claims a 0-100 km/h (62 mph) of 3.8, with a top speed of 334 km/h (208 mph). Compare to Bugatti Veyron 16.4, Porsche Carrera GT and other sport cars on their technical specifications and on race track performance, which of these sport car would convince you about it performance and leading in technology supremacy? Also the race between The Mercedes-Benz SLR Mclaren and The Porsche Carrera GT timing Clocked ?

• Answer:

  alright fanboy, are you aware that the SLR McLaren is a front-engined piece of crap that weighs well over 2 tons? it handles like complete crap and is too damn heavy. the Veyron isn't even in the same class as the Carrera and the SLR, but my best bet is the Porsche considering its time around the Nurburgring. real speed isn't in a straight line, a good car has to be able to carry that speed into the corners.