1/24th model help needed
 

I built a model of an AE86 Corolla Levin, and I want to put it's body on my xmod, but it's like, too short (wheelbase). It appears that the wheelbase is at it's maximum, on the bottom, the last screwhole, on the top, the last screwhole, is there any other way I can make this thing longer?

extend the chassis, but i have no idea how to do that