My view has somewhat changed on this in the year and a bit of my car being off plan.
Depends on the car and what maintenance has already happened. Under my extended plan I got around R250K worth of work done. Did all of it HAVE to be done? Probably not. Was it nice that they took that approach to maintenance? Hell yes! We complain about motorplan but to be honest there is no replacement for it in terms of 'aftermarket' warranties as many threads here will show. IMHO absolutely worth keeping your car stock (or M Performance Modded) in order to keep it going.
There are things that yes BMW could have probably repaired instead of replacing OR which you would have done differently had you been maintaining yourself (eg: if one shock looks a little sweaty, you might replace a pair - with BMW they replace all 4 plus all the bits and bobs that go with it....
Few things: Adaptive dampers were changed at about R80K cost to plan, aircon evap unit R25K+, brake pads and discs R40K odd, turbo oil feeds, turbo coolant lines twice at a good few grand a shot, services of course, resealing the multi-layer oil pan, clutches at also R30K+, DCT oil changed at that point, filters, stuff like wiper blades which on an M5 are like R900). The total cost of extra 2 years and 40000km was about R50K if memory serves. There is no other warranty that operates like this.... you pay every month thinking you have cover and then they will pay you R10K on your R80K failure which could have been avoided by spending R10K on preventative maintenance (IMHO).
By comparison Liquid capital does nothing on an M Car IMHO (Maybe it works for others) It is fine if you are going to wait for something to break. I am eg: doing preventative work (which I will document at some point) of around R30K (pipes/feeds/DCT filters/PCVs etc etc). These warranties do absolutely nothing for you if you're not going to wait for a major failure... then when the major failure comes your contribution to the cost of repairing the failure would probably be more than the preventative work would have cost you anyway to avoid it in the first place.
Motorplan you don't have such issues - they book the car, MAYBE investigate, replace stuff and then you're on your way.
Now that price will have gone up and if you have a maintenance fund or on a car that isn't going to cost much to maintain, then by all means don't bother. I am just saying, take a good look at a basket of items that might fail and do your comparisons. You then make an educated guess as to the likelihood that YOUR car (which only you know) will experience it
