Car rental one way from Calis to Istanbul--need help

[Swampy]

Not sure if this is the proper section to post this request, but can't really find a spot with this particular topic...I am looking for a car rental agency or some other entity that rents cars, if anyone knows a good, reliable, affordable company.  I need a car for a one-way trip from Calis to Istanbul.  The date for pick up in Calis will be August 30 or 31.  I cannot return the car, so it HAS to be a one-way.  Thanks for your input.

[Jacqui Harvey]

I think you would have to use one of the Dalaman Airport  Car Hire Agencies as you could then probably return the car to the Airport at Istanbul.  So, a company like Avis.     

[KKOB]

Yep, you'll need to use one of the big, expensive, companies like Avis, Hertz, Europcar for a one-way hire of that distance.

[Lotty]

A few years ago we hired a car in Fethiye for about 10 days to take a leisurely drive to Istanbul, we also left the car there and flew back to UK. We think we used Eurocar,  but there are several, online websites to research. Try holidayautos.co.uk where you might find a suitable deal.

[Lotty]

Hi, my husband says the website I suggested does have one way car hire available between Fethiye and Istanbul – quite expensive though, roughly £40 a day. This includes the one way hire surcharge. Needs to be with a firm that has offices in both places.
 
Also http://www.economycarrentals.com/ do it, similar price.
 
Google one way car hire Turkey and there are lots of websites to try. Hope this helps?

[Swampy]

Wow, lots of information to follow up on.  Thanks, everyone, for your help!