think of the challenge now ...
best 0-60 in reverse time .... requires a shift near 48
perhaps you could be the first to discover that the car upshifts in reverse (from "summer" to "winter") at the rev-limit
if its dry out tomorrow, I may see if it will let you shift from summer to winter in reverse (observing rpms for "the shift", of course)
top speed is likely to be a tic over 80 at 6200 ....
Chris