Saito engines are known to come with a very rich idle mixture. They will run fine this way giving little to know indication (except short flight times) that the mixture should be leaned out. I have read about this a lot over the past couple of years on this forum. Just some food for thought.

I have a 69" Yak and it fits in my 2-door Civic. It has to go in the passenger door, and the rudder won't fit through into the trunk so it goes prop first. It is a little pit of a pain pulling it out of the car over the folded rear seats, but a little 'ramp' over the bump there would fix that.

Here is an exact copy (except for covering) of the plane I'm flying, just for reference of what can fit in the car. You can go just slightly bigger.
http://www.hiflymodels.com/product-2...tid1=2&rid=212