The chassis is for the classic Scalextric Rover SD1(Ref: C280 similar) popular in the 1980's.
This chassis enables fitment of Slot.It motor pod Inline and associcated parts thus letting you tune the handing and performance of your car.
Will require a 'flat' interior to clear the new motor pod/arrangement.
Comes with front body mount post (will need to be glued to body) and rear body mount that fits into the license plate apperture. thus no parts needed from original chassis.
Front axle height adjustment with the addition of 2mm grub screws.
For added performance the option of fitting Slot.It SI-CH56B spherical bearings can be installed to the front axle.
More info here :-
https://www.facebook.com/media/set/?set=oa.276005959496014&type=3
http://www.slotforum.com/forums/index.php?showtopic=154370