Kombi:
There are no problems with vehicle registration as long as it is approved from the Motor Vehicle Depts in the various Provinces and met Fed standards with emission, lights, mufflers, seatbelts and the usual safety stuff. I do know larger 2 stroke engines are out because of pollution.
I am not into hot rodding anything but performane equipment is available.
Re Insurance" Depends on the Province. British Columbia has a Crown Corp. that does both the Registration/Title/Plates and the minimum Insurance requirement. Private Co can top this up. There are no discounts for multiple vehicles in one family. Rates depend on geographical location, usage( pleasure, business, work) age and gender of driver and yearly distance driven. Moving violations will carry a fine and will raise your insurance costs. Two speeding tickets or similar will hit you in the pocket real good and it takes several years to reduce the points that you get with each ticket.
Other Provinces like mine seperate the Motor Vehicle Dept from Insuance which is 100% private. You shop for the best deal. Those Co. look at usage, age and number of drivers, distance driven, location, age and type of vehicle and of course any prior claims.
My wife and I( no young drivers) have a 2008 pick/up full insured for pleasure driving at approx 25,000 km per year. We have no damage claims and no moving violations for a very long time. Approx cost Can$ 60 per month.
Inspections vary by Province. Some are for pollution only, others are for the mechanical condition. Nova Scotia requires a mechanical inspection every year, cost is $25