They really should do a 2014 xb4. The car has the most steering, but durability is the problem. It was designed for astro turf so it would be nice if it had a carbon fiber chassis option for more flex too for us US guys. That way I could get both xb4 and d413. But I doubt it will happen soon. Too busy with onroad they didn't have the chance to prepare for last weeks worlds. The car has so much potential it's a shame it doesn't get the work and attention from the engineers.