Capt. Geoffrey
The engine is a Subaru Legacy 135 hp 2.2 L
The Subaru seems to be a common engine to convert for small aircraft use.
But, I will repeat.
Some homebuilders are able to perform a reliable auto engine conversion. But as far as I can tell, those are the exception.
Statistics for homebuilts are significantly worse than type certified aircraft when it comes to accidents caused by fuel / ignition / engine failures. Auto engine conversions are even worse (statistically) than other homebuilts.
In this particular case -
Direct drive or some kind of reduction? Who made the reduction if it is equipped? What kind of track record does it have?
What kind of ignition system? Who made it?
What kind of carburetors?
How long has it been flying? How many times has it failed so far? How many "precautionary" landings?
You may wish to find out all of the above, and more, before you plunk down cold hard cash (much less put your butt in the air behind it).
Again, I'm not saying it can't be done, but for me, personally, this is not something I would pick for regular cross country flights. And, NFW would I fly across one of the Great Lakes with it.