There are a lot more differences than mere thicker plates. I have related the story of the ABC 6 cell battery built with .080" plates. 40 amp hours and instant acid starvation. It's cycle life was measured in days.
Or a customer in a bus with one of the first Trace Engineering 2524 SB inverters purchased solely for his microwave oven. I set him up with four group 31 Delco calcium/Calcium 1100 CCA batteries. The longest cycle was 3 minutes. I lost track of the man from La Mesa 5 years later with the batteries still going strong.
Beyond GC batteries the 6 cell scrubber batteries have even thicker plates the same as L16s, then 2 volt cells. My military built Rolls batteries have .300" plates but I had to parallel them for a total of 24 batteries in order to get enough CCA for a Trace 4024 inverter. It had to start a 7½ HP well pump under head pressure.
Auditing and engineering is the key. Find the best fit then stick with it.
But keep in mind a six hundred dollar drum of plate paste cannot equal a twenty seven hundred dollar drum of plate paste. And a .30 cent separator is not an eighty cent separator. Virgin lead is far superior to reclaimed lead but twice as expensive.
So pointing toward a YUGO then a RR Phantom and stating "same" because they have 4 wheels and a motor, is foolish.