Wah JB test drive... later the mech drive until Ipoh or Malacca, then you hoseh liao. You won't see the car ever again.
See how much you trust the mech and shop lor. Same as SG, they might anyhow chiong red light during that test drive.
The shop I did in JB, a bit far and had to wait quite long cos he one man show. Good thing is he won't run away with my car cos I have his workshop as hostage.
Alternatively you can go for the drive with the mech.