Three averaged sized European nations, one north, another central and the third one east. 280,000 to 310,000 covers the average sales so not too dissimilar. The Czech numbers include light commercials. Sweden is a big market for premium brands, far more than the others. On that basis, Sweden should be the winner in the JLR comparison.
Czech Rep: The 0.26% for LR isn't flash but not a disaster either. Jaguar suffers slightly with lcvs added because unlike LR, it doesn't qualify for any sales in that area. 0.4% is low but recent years have seen a marked improvement. 13.2% of JLR needs work.
Poland: Similar to the Czech figure but slightly helped with no lcv figures. Jaguar definitely has a stronger presence with 0.8% and for 2017 36% of JLR's total. The 0.34% total of all Polish sales could be better.
Sweden: With so many more premium cars sold here, an easy win for JLR right? No. Clearly the Swedes are not overly anglophile. The 0.35% figure may give a slight win to the country here, when the affluence of the car buyer is factored in, I'd call it third place.
Neither brands does well enough but at least a bumpy Brexit won't do any damage here. To put into perspective, nearly 47,000 Volvos were sold in the UK in 2017. Sweden has more to worry about.
Summary: They all look similar but I'll give the win to Poland.
Picture source: Netcarshow.