My new undertray has arrived 10 days from China.
Here are some pics of it
Its 5mm thick and quite strong hard plastic and will cover all the bits the standard one doesnt and should

Has 3 apatures for access to filters as shown

In contrast here is what VW...

Lsrtw2017 Plastic Steel Car Engine Chassis Guard Board for Volkswagen Tiguan 2017 2018 2019 2020-in Interior Mouldings from Automobiles & Motorcycles on Aliexpress.com | Alibaba Group

Maybe this will help those who want one

Apologies up front for no pictures - I was working with a torch.

I didn't' like the chrome grille surround so ordered a black Sportline one from SuperSkoda (along with mud flaps). I did a little research on the interweb before ordering so kinda knew what to expect. Should've be fairly straight...

Hi, just discovered the undertray is missing from our new occy. pm if you have one to sell.

The undertray of my 2008 1.8tsi manual is only half-length & has a couple of NACA ducts on the passenger side - I assume to cool the gearbox.
It looks approximately like this (this is leading edge pointing upwards):


I'd never given this much thought but was looking...