You are right , if a Cupra and a golf R were to pull up at a set of lights and both cars were to pull off without launch control the results would be different to the video Al posted , 4 wd is excellent for getting off the line using launch control but a bit h if it bogs down.
There's a video showing a mk6 golf R v scirroco R driven by professional drivers and the off the line the golf R gets away but once moving the scirroco soon reels the golf in , I'm pretty sure that's what will happen with the the Cupra and golf R unless the gearing has been changed , have t seen the gearing specs so can't comment.
I dont completely agree dude. 4x4 bogs down if you have a manual and you dont launch properly to the tune of the clutch being released before any kind of useful band of power has been hooked on to in order to build the revs.
For what its worth, here is a Golf R with no launch control and the same car with launch control
No launch control
http://www.youtube.com/watch?v=ec2TxN4nM5Q
With launch control
http://www.youtube.com/watch?v=JH_TZVl_9SI
What would happen in the Leon, without launch control, is either a mess like you see in the clip above where the driver mashes the throttle in the Cupra and spreads his tyres on to the tarmac like he spreads his margarine on to his toast or he feathers it and therefore is unable to utilise the performance available to him because the engine provides too much to avoid wheelspin. Both methods are shown on the 2014 Cupra above. Of course there will be a happy medium too although it is unlikely to be much faster if at all.
Then you also have to consider that for this type of accelaration, the Cupra requires a bone dry non slippy road. The Golf will launch from 0-60 in under 5 seconds even when its wet
The Leon will always be faster once wheelspin issues are history though
Don't confuse bhp with torque , your diesel may be a lower bhp but it's torque that produces speed.
Define speed?!
Power is how fast the car goes. Torque is how quick it gets there