That is correct about the sport, but the CS with Lux pack was available throughout Europe, this is essentially the same as a sport,
AFN the distributor at the time in the early 90s made the decision to rebadge the CS Lux as a sport in the UK to try and create a new model identity, this I believe was to boost very poor sales
These sports now because they have a CS chassis VIN number are being made out to be true CS with extras and sold as such, for extra profit
A quality CS in the uk can sell for anything up to £35k, the sport can make £25k
So you can see why they get changed, the funny part is currently still on the road in the UK, there are less coupes than CS and Sports, so the coupe is now the rarer car
This is all a moot point as they all have the same basic tin chassis and suspension, no matter what version, just a little less ride height
What I think Im trying to say is that a 360 lb heavier coupe driven well is just as fast as a CS, and its easy to lose most of the extra weight, have you taken out one of the 8 way seats!
Its all about the badge and media hype, the cars are all the same