I notice many on here when trying to sell their Omega, frankly don't do a very good description or even attempt to, then keep bumping the thread etc or ask why it's not selling, some do a good job aswell.
So in an attempt to help, I thought I'd give a very basic format people could use. I use exactly the same format most of the time when I sell a vehicle.
You'll have to delete as appropriate the info etc.
BU07 AYH is a Vauxhall Omega GLS/CD/CDX/Sport/MV6/Elite/Special (engine size + transmission) presented in (whatever colour) with cloth/velour/leather in shale/shadow grey/charcoal, it has covered (miles exactly) from new with full/some service history.
The MOT is valid until the **th of ** 201*
RFL is valid until the **th of ** 201*
The cambelt was last changed on the **th of **, **** at (mileage)
Tyre makes are (whatever) with *mm of tread.
Some of the features include;
(whichever features you feel are most important and model specific)
Price £
I understand to some, selling a vehicle can be daunting and they are not sure what to include...but if you are methodical and give enough accurate information you make sure any potential purchasers are well informed.
You may want to add more info, but typically the above is a bare minimum. I on times have ommited certain things

but the more info, the better chance of a sale.