I can think of one that was significant in the UK - the Amstrad PC1512, running off a NEC V30 processor, with 512KB RAM, easily upgradeable to 640K, with option

I can think of one that was significant in the UK - the Amstrad PC1512, running off a NEC V30 processor, with 512KB RAM, easily upgradeable to 640K, with options for one or two floppies. I had one myself, along with a 32MB hard card fitted into the rear expansion slots.