Presumably the air pressure when its moving forces the 'spoilers' back and stops the boot lid from flying open over bumps.
If they're removable you also have a couple of benches for your kids if you have an impromptu picnic.
It may look a bodge but obviously deep thought has gone into this.

I had mine Ziebarted when I bought it at 18 months old so that presumably helped although it needed new sills and wings when it was in its early teens. I occasionally think about getting another instead but it'd cost more than the cost of repairs and at least I know the issues with this. This also h...

That's a great offer!

Maybe @bub2006 could use it while he gets his BM sorted out.

In the 80s it had new part sills and wings and a full respray for £1k at a backstreet garage in Leeds. I'm in my mid 60s now and am having more joint problems as well as a knee operation so unless I get it done fairly soon I'll not be able to get in it to drive it. I'm just going to have to bite the...

I've done a lot of research on this and it's as Eddie says. The guy at the local garage is going to put it back on the ramp and see what the minimum needed is as I've said that I'll do the paint, by rattlecan, and am only bothered from a safety point of view. I couldn't give a fuck about the appeara...

Too fucking true but ties in with other quotes I've had which have been about £3k per side plus any thing else that they find once they've looked at it. At least this guy has finally inspected it on a ramp. That's what happens when MG design a monocoque after being used to building body on chassis c...

Finally got the quote for the sills today after waiting 9 months. As the bottom of the front and rear wings need cutting off to replace them it's 92(!) hours labour on top of over £1k in parts giving a grand total of £5.5k including VAT - over 3 times what I paid for it, albeit 43 years ago. :o Appa...

I wonder what that's like in crosswinds

Sounds like your mum needs to 'remind' your dad of his skills.

Oi! Some of us, well at least one, are over 60. I've only ever had 2 autos, both as short term company cars, a BMW525E and a Sierra 2.3 Ghia. Both my present cars are manual and I don't see an auto in my future unless I'm forced to have one. I would go all 'DollyWobbler' on you but the mods here don...