@owie: the enviorment also aids spock though. OP clearly states that cars are just lying around. Ock has no remorse, so he would just start chucking cars at them as he begins to close ground. 50 ft is only like 16 yards. That's not very hard for him or kraven to close the difference. Also he has webbing which wolverine can't handle.
Cars would be easy for Cyke to blast away. Or, even better, to deflect towards SpOck and Kraven. And while SpOck is much more violent than Peter, he's also much less lethal than he was as the real Doc Ock. He intentionally tried to keep within his own perception of Peter's morality, which at a minimum meant no killing.
50' is long enough to get off numerous optic blasts.
Wolverine can cut through webbing easily, although of course if he is very strategic about webbing just his hands to a wall or something like that, it's a problem.