Thank you, Zsolt, for the video link! It is clearly evident in that video that this is the best product that FlyingIron has done to-date. It not only looks absolutely incredible (every inch of the modeling and textures), but it sounds incredible too (perfectly matching the real aircraft), and it appears to fly and function as I know the Bf 109G to be in reality as well. This is bound to quickly take the top position of my favorite warbird in MSFS - now, tomorrow can't come fast enough!
Originally, these of course had to be hand-crank started, as there was no electric starter installed. There is a cog on the starboard side of the engine where a hand crank goes, which was used to spin up the inertia flywheel and once that reached maximum RPM the pilot would pull the t-handle control on the left-side of the instrument panel which would engage the flywheel and the engine fires off. The Bf 109G-2 "Black 6", which was restored in the UK in the 1980s and flew for several years in the 90s, was fully stock in this manner, with each start requiring two guys outside the aircraft on the wing to get the inertia starter cranked up. So often too it would take more than one attempt to get it started, and they would be forced to have to re-crank it all over again. Every other DB-powered Bf 109 that has been restored to fly has had an electric starter installed in order to spin up the inertia flywheel. The sound is close to the same, you just don't get to see a couple guys toiling over hand-cranking the starter. I noticed in the preview video posted above that FlyingIron has tied the inertia starter function to the red master switch, and then you pull the t-handle (as per original) to engage the starter/fire off the engine. In reality, the way they have this setup in the DB605-powered Bf 109s flying today is that you pull the t-handle out, which starts the electric motor spinning up the inertia flywheel, you wait until it is fully spun up, and then you push the t-handle back in which engages the starter and it fires off.
It will be nice to see what the full compliment of paint schemes will be (I've got a few I will like to try my hand at doing repaints of, if not included). The screenshot of the model at the top of this thread shows the old paint scheme that the Messerschmitt Foundation Bf 109G-6 (converted Buchon) sported back in the 1990s and early 2000s, back when it was still registered in Germany as D-FMBB. About 15 years ago they stopped flying it and had it fully overhauled/rebuilt, and it was finally completed/flown again just a couple years ago. It now flies registered as D-FMBD (since the reg -FMBB ended up going to use on another aircraft), though it otherwise was repainted to closely match the same paint scheme it had prior to rebuild.