Infrastructure Minister Michelle Haywood says MOTs aren't being considered by the government.
Arbory, Castletown and Malew MHK Jason Moorhouse asked a question for written answer about progress introducing the roadworthiness tests after the new Vehicle Test Centre opened.
Dr Haywood said evidence testing improves safety is limited, and MOTs would cost the public, garages and the government.
She said mandatory testing for HGVs, taxis and buses remain in place.
150 Manx athletes to compete at the 2025 Island Games
The Isle of Man is preparing to send more than 150 athletes to compete in the 2025 Island Games in Orkney on July 12.
Text reminders from Manx Care
Did you get a text reminder from Manx Care about appointments last year?
Audit into eco-friendly motorbike racing
The government has refused to say how much an audit to make motorcycle road racing events more eco-friendly has cost.
Road survey asking for your views on infrastructure
What do you think of the Island's road network?
Celtic League claims interest waning in Tynwald Day
Manx nationalists claim a decision to cut the number of grandstand seats for this year's Tynwald Day shows people are less interested in National Day.
Tynwald Day festivities as Island marks National Day
Tynwald Day gets underway today - with plenty to see and do in St Johns.
Drone ban in place over Tynwald Day in St Johns
Flying a drone over Tynwald Day celebrations could mean you spend the next five years in jail.
Chance to meet the tram horses in Douglas
Want a chance to say hello to the tram horses in their stable this summer?
