Really nice work but Where would the gauges be displayed? Would it be displayed on a HUD inside the rider's helmet? Also, how would the lights look on the front? I'm not trying to be a knit picker but I couldn't help myself.
I build the base mesh in maya , zbrush at the moment is more so for the detailing . I find it alot easier to model in maya hard surface stuff though there are some artist that use it from start to finish