I wouldn't say that lfs has more physics features or just features. Tbh I have no idea how someone could even say that...
I mean, here's just short list of things that are missing from lfs and are in iracing: ground effects and ground clearence and rake having an effect on df, setup options based on real values and limited by real values and car type, tracks that are trillions and trillions times better in every way than anything in lfs, many more different type of race series and cars, bumpstops, replays that work even if physics have changed, event result .csv exporter, sucky forum, driving school videos, night racing, much much complex aero as a whole, spotter, multicore support, a TON more realistic setup options like arb preload, live rear axle, asymmetric setups, voice chat, better replay controls, delta timing so you can compare your lap times to your optimals when live.. There's the document on iracing forum (if you can find it
) where 3 years of updates are listed... I could keep going listing stuff forever.
Lfs has good crash physics, visible tire deformation, skin sharing, flatspots, great forum with good mods, autocross editor, driving tests, sound system using really short sounds making all cars sound crap.
Both sims are very reliable and crash rarely. Due to their nature the online experience is different in many ways though. Many features are in both.
But to say lfs has more features is just not true. Lfs has still some ground breaking features but having few features the competition does not have does not make it have more.
If I had millions to spend on a racing sim I'd buy nkpro. There's imho a sim that with proper funding and someone else making the schedules than kunos could show iracing how it is done. All it needs is tons of bug fixing, aero updates and some extra content and it is a killer. Then add stock cars and ovals and the muricans run in through the windows with their credit cards in their hands.
Or buy racing legends and never be heard of again.
I don't think the genre is joke either. Maybe it was in 2005-2006 when lfs was the only real sim. Not because lfs was bad. It wasn't! But the competition was. I mean a 3 man team working in sheds across the europe is the first one out with new online business model and a good racing sim. Looking at what lfs was then and what the competition was I think sim racing maybe was a joke then. But today? No.