When the previous American backed regime was quite rightly kicked out of Cuba in the 50's, they left in a hurry and without their cars. A US led worldwide embargo followed, with no foreign cars or parts being imported. So, to keep these works of art on the road, spare parts are hand forged, and the bodywork when inspected closely, varies from good, to being held together by tape ! A great spectacle though, and worth going just to see them while you can. Cubans recently, do not now need permission to buy a foreign car, so go soon.