Stupidity: Magnum totals his car and suffers " a severe concussion, numerous cracked ribs, bruised hip and a contused kidney." The injuries are methodically listed and can't be dismissed, but he's driving, on his own, literally the next day, and the Ferrari (which requires importing pieces, plus an insurance claim) is repaired just a day after. Both are more than miraculous recoveries - and his friends who care this much about him just let him drive in such condition (one has to assume that with damage so severe he'd also be on pain medication, but that's not mentioned).