Without a doubt, the best paints you can buy. Sam's product is fantastic, his service is world class. Almost all my builds use splashpaints for the interior and in particular the exterior.
I buy a lot of kits and after market parts to add details to my builds. Without a doubt y favourite supplier is model roundup. Fast, courteous, top quality and good prices.
Tonnes of after market parts. This is my goto place for rivets and bits and pieces I can't find elsewhere.
Tires are hard to get right, especially white wall tires. These guys are my goto for all things wheels and rubber!