Vic Smith wrote:

My "new" car has more empty space in the engine compartment,
but it has almost no "wall space". There are a couple
spots big enough to mount things, ...

What are you going to mount in there, more cupholders?

Yea, I thought that was the obvious question here. Nobody else caught
that one.

I wonder why "new" was in quotes.

No good reason to be drilling in an engine compartment.
Any aftermarket stuff you might put in there should come
with clamp-on attachments.

Not sure what surface he could be talking about. Radiator bulkhead?
Firewall?