Zero XU is probably the best compromise between speed and price. $10500 for the big battery bike, ~50 miles combined range, < 6s 0-60, able to ride on the freeway for short jaunts.
The FX is a bit faster with the larger controller. $12k, slight reduction in range but very quick.
If you want Empulse speed + acceleration then you have to pay Empulse prices.. for now.