Sue and I have made the journey many times since the early '90s by hire car en route to our beloved Stella Studios in Plakias and I'd say 1hr15-1hr30 depending on traffic, even in something as atrociously underpowered as last year's Kia Picanto where you had to choose between forward momentum or the air con but never both together! Having said that, I am a motorsport journalist and road car tester by profession :-)