The used car test drive checklist

Set up the drive properly

Insist on starting the car cold. Plan a route with low-speed streets, a faster road and a few bumps. Drive for at least 15–20 minutes and turn off the radio so you can hear the car.

1. Cold start and idle

Listen at start-up for knocking or rattling, watch for warning lights that stay on, and check the exhaust for blue or white smoke.

2. Engine under load

Accelerate firmly: power should build smoothly with no hesitation, flat spots, excessive smoke or unusual noise.

3. Gearbox and clutch

Manual: the clutch should bite cleanly and gears should engage without grinding. Automatic: shifts should be smooth, with no jolts, slipping or delay.

4. Brakes

On a clear road, brake firmly: the car should stop straight without pulling, vibration, squealing or a soft/spongy pedal.

5. Steering and suspension

Hands lightly on the wheel, the car should track straight. Listen for clunks over bumps and feel for vibration through the wheel, which can mean worn suspension or alignment issues.

6. Electronics and comfort

Test air conditioning, heating, windows, cruise control and driver aids during the drive. Faults are often easier to trigger when the car is running.

7. After the drive

Let it idle and look underneath for fresh leaks, check the temperature gauge is stable, and restart it warm. Then document anything you noticed.

A CarGuard AI inspection complements the drive by screening bodywork and engine sound — useful evidence for your decision and negotiation.