Complex sentence: In March 2012 ERA topped a speed of 260 km/h while driven on ice at Lake Ukkojärvi and with average speed of 252 km/h ERA is the fastest EV on ice.
Split into simpler sentences: In March 2012 ERA topped a speed of 260 km/h while driven on ice at Lake Ukonjärvi. With average speed of 252 km/h ERA is the fastest EV on ice.