I've had McLaren' for almost 6 years now, many Lotus cars before that... It's a tough call, the McLaren's a whole different machine, carbon chassis, lots of tech, bepsoke v8 etc. Touch wood I've had very few niggles over that time, probably less than with my Lotus cars so no big deal, add to that I get my servicing done by Bell & Colville who used to look after my Evora...it's just like old times! That said...
I've been thinking of a change for a while now, I had deposit on an Emira right at the start but wanted the 4pot and even way back in was apparent deliveries of those would be 2023... and that was before all hell broke loose in the world! I thought about the Artura, again long delays and big ticket too, even if I wanted to fork out, lease, sell a kidney I'm not convinced I could justify it!
I'm a little in limbo right now, the McLaren's an amazing car, but in all honesty if Lotus had an EV version of the Emira I'd be biting their arms off right now, even if the lead time would be massive... in fact if anyone had a decent EV sports I'd be keen! The SUV doesn't appeal but I get it.
As for talking the OP out of a McLaren I wouldn't discount a 570's, there's a bunch around at almost 'reasonable' prices , they're mostly well sorted cars, all the usual FSH stuff applies and does the extended warranty.