Just look at the following 90s sport car in a black paint with grey interior.
This project is a good answer to the eternal question "Is it possible to make a good connection of LEGO TECHNIC and LEGO CLASSIC bricks?" Of course, it is and here is the example! (Model contains approx. 1000 parts).
It has a working differential, front and rear suspension.
The engine cylinders are working during rear wheels movement.
The steering wheel is fully operational. You can easily open doors, hood and trunk lid.
Just enjoy it!