The Protar are nice kits, they need some cleaning but over all are nice. I built some Heller cars, also the recently released Mehari, and the quality seems stuck in the seventies...
A piece of history that need to be preserved... Think that Protar had a historic collection of every kit they did, with advertisment etc, but in 2013 a fire seems caused by a shortcut destroyed all the factory and collection.
Here some picture of the fire.
inside.
Here some shot of teh engine