I've competed in a Sylva Stryker ( 7-copy with improvements ) in early January in Scotland on a NIGHT rally event. After second stage HAD to run with the hood down so I could navigate properly without throwing up. PUlling up to a time check at 1am 3000 feet up on a moor in the middle of nowhere with temperatures below freezing. We were crap ... but the marshals awarded us the "spirit of the event" award - an old Audi hub cap found at the side of the road for our endurance.
So, K, I'd keep it in a shed for 1/3 of the year
re various other comments.
YES, easy to spin the tyres up and the V* s the worst as the extra mass AND oodles of torque make it very difficult NOT to smoke.
BEST engines are bike based due to lots of power, torque not necessary due to lightweight and sequential box to bang up the gears to maximise acceleration
7s are one of the easiest cars to get balanced properly and one of the easiest to completely screw the balance !!