The next southern meet......

[V70 Graham]

............ Car still dead..... Looks like a more complex electrical issue (but it'll probably just be a loose connector)...

Hopefully an easy/cheap fix mate.

[RichT4]

............ Car still dead..... Looks like a more complex electrical issue (but it'll probably just be a loose connector)...

I'd check the wiring from the battery to the starter, make sure it hasn't fried.
You had that loose connection which gained some heat, that will draw more current potentially burning out the cable.

Do you have any test kits there?

Let me know if you continue to have this problem and I'll come up to hopefully help.