where to rent a sport car or normal car for cheap. 5 Days

Hello guys,

Going for a wedding to Okinawa main island this year will be there for 5 days and rest on main island of JP

I wanted to rent a GR86 as i use to own a gt86 in UK. If I like it i might import one from JP.

Toyota rent a car is there but £310 with insurance is a bit steep… (use to paying like £100 for 5 days for a nice saloon)

I found on klook i can also order one through Relax Car Rentals for only £150. Anyone had experience with that company?

Not sure what to do, if it's too steep, i just want to rent a car for cheap has anyone used the actual rental company website to reserve and please give me some reccomendations

TLDR. Want to rent a cheap normal car through local website any recommendations even better if it's a sports car

TIA

by AstraAzir