Jaguar 420 Review

1968 Jaguar 420 Compact 4.2L Straight 6 from Australia and New Zealand

Year of manufacture1968
First year of ownership1999
Most recent year of ownership2003
Engine and transmission 4.2L Straight 6 Automatic
Performance marks 8 / 10
Reliability marks 2 / 10
Comfort marks 10 / 10
Dealer Service marks 5 / 10
Running Costs (higher is cheaper) 10 / 10
Overall marks (average of all marks)
7.0 / 10
Distance when acquired0 miles
Most recent distance0 miles
Previous carToyota Corona


Old School Class


Main thing: Brakes.

They stay on.

Complete overhaul done - problem still arises.

Have to jab the brake pedal to get them to go off.

If you drive it for too long unaware of the brakes being on - fires start.

General Comments:

Super for cruising - even though it uses fuel like there is a hole in the tank, and it is so heavy, the 4.2 liter engine is needed for it to keep up.

Sounds wicked, though.

Very old school.

Would you buy another car from this manufacturer? Yes

Review Date: 28th May, 2003

5th Jun 2004, 16:42

Jaguar used the wrong spec on the brake springs. Replace them and your brakes should be fine.

8th Jun 2004, 20:42

I really like the old Jaguars. The new ones are awesome too. Brakes are very important to a car.

25th Nov 2005, 06:18

I had this problem with a Mark 2 Jaguar. The brakes would stay on and the pedal would be rock hard, it wouldn't move! I found the problem was the brake master cylinder piston sticking in the bore due to a mechanic putting rubber grease inside the boot where the pedal rod goes in. In good faith he was trying to reduce any likelihood of damp getting in there.

The rubber grease had got into the bore and dried to a gum.

Average review marks: 7.0 / 10, based on 1 review