Help with Vehicle & character

I’m hoping someone can help!

I’m creating a game where you drive a taxi around New York as Spiderman and Green Goblin fight around the car.

The first problem I am facing is I want Spiderman to swing an land on the car and then swing away. I have the individual animations done however it stops after he lands on the car and won’t go into the next animation.

The second issue I have is when I attach the models to the vehicle blueprint it adds weight to the car and makes the collider too large. does anyone know how to fix this?