30-80 through the gears would get my vote
If you turn off traction control to prevent it getting bogged down and you're very skillful with the throttle, balancing revs and traction to perfection, you might get 4.6s ish. The advantages the LC has are 1. consistency - it'll give the same time all day long, and 2. it can slip the clutch a little if it needs to and with no third pedal you can't do that. So comparing it with my B7 RS4, the RS3 has about 8% more torque and 11% less weight, similar gearing in 1st and 2nd, a wider torque curve but more turbo lag. Should give a slight advantage to the RS3 then, hence my guess of 4.6s. Maybe slightly better if you can get a tiny bit of spin on a damp road to keep the revs up.
A fun thread but mostly irrelevant. There are much better measures of acceleration than 0-60, although that tends to be the popular benchmark that journalists understand. 30-80 through the gears would get my vote. Or standing quarter which makes the launch less important.
3rd advantage: it launches at more than 900rpm!
Let's face it you wouldn't use LC all the time so in normal day to day mode it's a good question. When I was looking at buying a Golf R I asked the same question as you can't compare real 0-60 with other cars and I think if a manufacturer quotes a 0-60 that is based on LC they should state that in the literature.
That seems slow as sh!+ my stage 2+ b8 s4 puts down 4 flat granny shifting w/o LC but I'm also 3.1/3.3 ish with LC in S mode.....you should hit up 034 or giac. Apr probably the safety ist. Much more the money tho. Bought my baby girl second hand whit the arp already. Good luck my next will be a 5 like your but 2013 with a stick. Dsg/sTronic was a huge mistake. And iv been lucky my a champion. 107k and spins like a top. I'm just craving that thrd pedal. Like a drugId say it's closer to 5 seconds having tried it.
LC is 4 dead according to some tests.
That seems slow as sh!+ my stage 2+ b8 s4 puts down 4 flat granny shifting w/o LC but I'm also 3.1/3.3 ish with LC in S mode.....you should hit up 034 or giac. Apr probably the safety ist. Much more the money tho. Bought my baby girl second hand whit the arp already. Good luck my next will be a 5 like your but 2013 with a stick. Dsg/sTronic was a huge mistake. And iv been lucky my a champion. 107k and spins like a top. I'm just craving that thrd pedal. Like a drug