A business class car on the CS looks like a coach car on the inside, but you get a 6-dollar purchase coupon and a pair of bottled water (last time I checked, correct me if I am wrong). As for where it is, it is located, it is located behind the Dining Car and ahead of the Sightseer Lounge Car. The consist looks like this: 2 Locos (sometimes a third locomotive is added as a deadhead)-Transitional Sleeper-3 Sleepers-Parlor Car (sometimes substituted as a lounge car, taken out January to March)-Diner-Business Class-Sightseer Lounge-2 Coaches-Seasonal Coach-Private Car(s), if any