I have done 4x4 rally with the Lada Niva and will build back one for our museum
Its was white like the Lada Poch cars where I suply parts for race in France and Paris Dakar(Briavoine)
I was driving with the original niva engine 1600 and made also a 1800 (buying by De Ladriere)
Also I use Fiat 2000 cc twincam . I still have a Voulumex engine but also a Fiat 130 V6 like in the last Lada Poch cars (V6 power but not Fiat and Roc engine )