Actually bits of them were not too bad. The Midget engine wasn't bad. The MBG engine wasn't too bad. Ceraily no worse than any other makes including germn - of teh period. If you want a really bad engine, try the old air coolled VW Bettele engine. You might have to regrind a morris crank after 70k miles, but you had to line bore the VW block as well...
The gearboxes and backl axles were also not bad.
What let them down mainly was poor fittings and rusty bodywork. And an extaordinary front shock absorber arrangement.
Contrast with the triumph Hearld/sopitfire front suspension, whch was univeraslly used my most kit cars as beinginfintley better. Sadly the rear suspension on those was as bad as - yes - the VW beetle!
What actually happened is that Briotain failed to keep pace with European stanrads in engine longevity, top speed and cossroision prrtofing, and far east standards in reliabiliy and gadget provision.
Thats why Rover used a Honda engine ultimately in their smaller range. The old rover engines were direct descendent of the A35 (A series) and the original morris oxford (B series) engines. Never been changed.
If BMC had bitten the bullet, and simply concentrated on one or two GOOD designs, and sacked the workforce and opened up one new factory, they might have made it.
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