It looks the same as the trad heater box. If it is there should be a pipe either side near the bulkhead. On older cars MMC piped that through the firewall. Now they just drain in to footwell.
I would fit a cover if it sits outside.
Famous other leak points are the wiper arm bevel box seal to the bulk head which new seals and a smear of silicone can help & the to screws that hold on the
bonnet hinge which can be filled with silicone sealant.

Typical Aero driver throwing coin of the realm around willy-nilly . If my memory serves me correctly Neil may have had a Kiwi/ Aussie accent Simon, having lived in both places.

Thx chaps.
Yes all over the picture posting now, so easy, not sure what everyone is honking about.

Not sure the sponge on top of the heater was ever meant to stop anything but leaves and debris but there absolutely MUST be drainage pipes somewhere. I’ll have to investigate.

Good idea to get a bigger cover to extend over the vents. I can see water is also dripping down from the bolts that secure the heater on bulkhead too.

I had all the leaks on my Trad through wiper spindles etc and now remedied.

I’ve switched garage space and put the trad outside (more weatherproof ) and are inside.

Later I’ll unscrew the 2469 little screws and remover the black dash undertray.

The sponge on the heater air intake on my trad Plus8 perished. It was an air fliter to stop debris going in but a couple of leaves were in there! I replaced it with fish tank filter mesh/foam. Large open cell about 10mm thick. No problems with any water after a few years in situ.

Pretty sure this little rascal could be the drain. There’s one each side. Seems a bit high though.

I think it was at the Mog at Buxton that one of the entries in the innovations was a Morgan with a basin drain and plug fitted in each of the footwells.

On the subject of water etc, y/day SWMBO wanted to go for a ride and for some reason I took her tin top heading out of Sunderland
We got lost following a load of horses then tried to find our way AGAIN after a try this then that I got back on the road AT LAST . So off to Tynemouth as we went down to the tynemouth car park it was flooded rather deep ( I had said to SWMBO " we are taking the tin top before we started .)
Two idiots sitting looking at it in their car . A should it or not, so I drove past as they scratched there heads . Two plonkers all right and I into a space .
What do they do they walk around the car park and tell us we have there space . I point out they should have took it when it was standing empty . Out came the pet lip . They walked away . I don't understand if there is a space use it . No doubt up on holiday

I would like to see them get a seat at the football match , they will still be standing there now

but thank goodness the mog was left at home as the water would have flooded in to it , yet every other place was dry.

Water is coming in through the gasket between heater box and bulkhead ffs.

For me that is a major job. Not one I’m prepared to do.

PITA as I really didn’t want another dry weather car

Try some Captain Tolleys Creeping Crack Cure. Nothing to lose.

Sounds interesting