Hotel Gran Derby Stay & Smart Package!! The four star Superior Hotel Gran Derby Suites, located on a quiet, almost completely pedestrian street in one of Barcelona s best commercial areas next to Avinguda Diagonal, offers you the Smart package, an accommodation option that includes, among other things, the use of a fantastic Mercedes Smart car, so that you and your companion can enjoy Barcelona however you d like. The Stay & Smart package includes: One night in a Standard room. Daily buffet breakfast for two. Free use of a Mercedes Smart, so that you can take in Barcelona at your leisure subject to availability. Daily newspaper. Daily Parking.