If you choose to use inventory items, you probably should create a new item for each vehicle, and use the inventory functionality (adjustments, item assembly, or a Purchase Invoice) to add your work order costs / internal services.

You could use Serial Number tracking, but unless you're disposing of a fleet, you likely won't have identical items anyway.

You could use Projects, but be aware that Projects are a reporting tool only. If you wanted to keep track, and report, on which manufacturers / vehicle models you were buying / selling, Projects could work as a tracking method.

I don't know enough about the specifics of your business - it depends on a lot of things, including the volume that you will be handling. You may want to discuss this with a Sage Certified Consultant or your Accountant before heading off in a direction that could become a dead end.

If you choose to use inventory items, you probably should create a new item for each vehicle, and use the inventory functionality (adjustments, item assembly, or a Purchase Invoice) to add your work order costs / internal services.

You could use Serial Number tracking, but unless you're disposing of a fleet, you likely won't have identical items anyway.

You could use Projects, but be aware that Projects are a reporting tool only. If you wanted to keep track, and report, on which manufacturers / vehicle models you were buying / selling, Projects could work as a tracking method.

I don't know enough about the specifics of your business - it depends on a lot of things, including the volume that you will be handling. You may want to discuss this with a Sage Certified Consultant or your Accountant before heading off in a direction that could become a dead end.

Thank you for your suggestions, they are very much appreciated. I think I can make it work using the strategies you suggest.