Overreading on Speedo can be quite bad, and because of the required gear charge into third and loss of speed in the charge, add a half second on, prob looking at 7.5 ish. Standard i would guess.
Agreed re: 60 in 2nd Gear with 6sp box aint happening. I have had mine timed a fair few times, the best being 7.3 seconds last summer in scorching heat. Tried a run to the redline in second with no gearchange just to see... and didnt register a 0-60 time!!
Remember Cupra book time is 7.6 and LCR book time is 6.9 seconds, so it would take quite a big increase in BHP to bridge the gap, i was happy with 7.3 as it is still standard bar exhaust and CAI. More times to come the year hopfully.
Best way to play properly, get to Santa Pod/ York Raceway to have a play with proper timing gear. Trax 0-60 run is a giggle too