Hey,
Europcar has opened a new sub company called InterRent which is basically the same cars and locations as EuRopcar but cheaper prices and terms. they're all over Europe as well as some French overseas regions and some middle east and African countries.
I tried them on my trip to the canary islands in Spain and it was a great experience. not con might be that depending on the location they might have limited car classes available.
Underage drivers: this is especially great since they only charge 5 Euro a day for underage fee!