It wasn't the most polished design, but they improved as they went and #5 was much more production ready. #3 was still prototype stage. They trimmed the oil pans for clearance, and had a machined aluminum housing to adapt the car engine to the Guzzi trans. Used the Guzzi flywheel and clutch, as I recall. At that point in my life I had moved from a '40 HD Knucklehead to a Cagiva Allazura 650, which I crashed, so bought the inline 4 while still in a cast, (broken Tib/Fib on the left leg). Man, my surgeon was Pissed when I rode to my appt while still using crutches. The shop owner was riding it and I admired it. He told me he'd been offered XXXX for it, and wouldn't sell, so I asked him what it would take. I don't think he was prepared when I told him, "that sound fine with me, do you want cash or a bank check?" I regret selling it a few years later, but I got tired of people trying to kill me in traffic in Beaverton, OR and was riding everywhere, living in an apt w/o a garage or covered parking. I ended up buying a Miata and doing that for about a decade before returning to riding.