The car is not recorded in the Register and appears not to have survived.
The factory file shows WP 3667 as being J3146, build date 30 3 33, release 8 4 33 via P J Evans, Birmingham to Miss C S Wilesmith of Malvern, Worcestershire. Body colour white upholstery red.
MBH had this one as a "no news" car. I appreciate the "L" plate. I could drive the J2 as a learner, but not Mums 1275 Midget - that's statistics for you.