I agree with Nigel, it's very easy to use a RX for a daily driver. You just need to ensure as usual pay attention to your temp and it's your driving style that determines the car's thirst...
I did 2nd gen RX-7, RX-2 RE and 1st gen with 12a bridgeport...all daily drivers...
But I must ask...you drive a starlet and switching to a 3rd gen...how come?
I mean...that is most definitely a big upgrade...
Enjoy it
