the Best way to go is find a older car youd like and convert it,
why buy a hybrid with electric and gas motor
only to throw more money at it to convert it?

a vw cabriolet is a chick car(search for voltsrabbit), and many have done conversions for them so its not unknown territory .

again you can probably find a free or extremely cheap car and convert it for thousands less than the cost of buying

almost new +electric parts vs free/cheap car + electric parts

these cabriolet are good examples of ev worthy cars :

volskwagen cabriolet
1989 VW CABRIOLET -


before considering a car for being an ev, think about....

WEIGHT!!!
#1 priority