I can't say I've noticed anyone making you feel unwelcome, but maybe I've missed something, or not read something into something that I should have. Still, we're quite a small moderation team, so we do occasionally miss things. Probably occasionally = frequently

I own a Vauxhall and a Rover. I expect people to call the Vauxhall's rust buckets and the Rover a HG basher. I don't get emotional over it. Maybe I don't read enough into it, and just take it as banter :-/
You own a Skoda. You are a bit daft if you think people aren't going to mention Skoda jokes. Skoda may have improved since being swallowed by VAG (or some might say VAG have gone down the tubes since swallowing Skoda - I'd say an element of both

), but you have to accept the jokes will always be there.
Your Superb clearly suits you, good luck to you. Although I think you need to be less sensitive that its a Skoda

. I think some members found it a bit tiresome that every time they posted a query about a problem, your reply was always 'buy a superb' though. Not overly constructive on an Omega forum

. Despite the saloon's pig ugly looks, the Skoda Superb is not a bad car IMHO. Its not what I'd call a great car though - my neighbour had a 11 plate one briefly for about 5 months. Its an acceptable, if dull, drive, reasonably well equipped, but bland interior, and most have underpowered engines, with the diesels out of favour with company car drivers due to high tax when coupled with autoboxes. You can't see the exterior styling from inside, fortunately.
Good luck on finding a suitable site for VAG - I really struggled when we had Audis in the family (now got to find a good Renault one, oh dear

).
As others have said, its up to you if you want to leave, thus its up to you to delete your account.