I like Hirobo Ashura because it is using gear differential in both front and rear & the only 1/12 belt drive. Others just using one way bearing in front. But all plastic makes the classis a bit fragile.
In terms of material usage, I really don't know what the Hirobo 亞修羅 people were thinking. All plastic!! On the other hand, if the car was made with the modern carbon fibre composite (like RC10 B4), then it may be a very very excellent car
ABC Spark, even the tiny shocks was super well designed, totally CVA, even better than Kyosho gold shock. The only problem was, after a while the oil-ring would get worn out and it leaks!