Daily driver? I'm betting that more than a few of the folks here drove LBCs as "daily drivers" back in the day when these cars were new (and there were dealerships to fix them!).
I bought a nice '70 Triumph GT6 in late 1972 and drove it daily for about three years, including a couple of road trips from VA to Miami and back. Put about 40,000 miles on her and did a fair bit of autocrossing on weekends. Very few problems, and I maintained the car very well. She never left me stranded and I drove her hard, too. I also had a Spitfire, and later, an MG, too. All good cars.
Several friends drove LBCs in those days, mostly Triumphs and MGs. All were pretty reliable cars with the possible exception of a '73 XKE that a buddy purchased brand new. It had problems from the get-go and never seemed to be properly sorted. Otherwise, I don't recall specific examples of anyone having major problems with their LBC. We did a lot of our own wrenching then, and we took good care of our cars.
Of course, the cars (and the drivers!) are antiques now. But a nicely sorted MG or Triumph should have relatively few mechanical hiccups, IF the car is recently restored and carefully maintained.
To me, it wouldn't be a big deal to use my LBC as a daily driver, but I don't. My MG is for sunny days only, she gets pampered and the Ford and HOnda do the hard, daily work. I salute all of you who use their LBC as the daily driver, wish I could do it . . .
Darn tough vehicles, these Brit cars.
