Detailing the interior of Spectrum heavyweight passenger cars

[knotman]

I would like to detail the interior of a Spectrum heavyweight passenger by painting the seats, interior walls, etc. and adding figures. How can I best get the car opened up so that I can do the detailing?   Thank you in advance for helping me with my problem.

[simkon]

I know the roof comes off because I had to replace a light once, but it may be hard to detail the interiors of some depending on what type they are...