1. Similar to Hong Kong.
2. All volvo Olympian have Volvo engine, 2axle have Voith, 3axle have ZF
3. Not sure about this one, but SBS was the dealer of Volvo bus in Singapore
4.Very similiar to Hong Kong but speed limit is 60km/h except for Super Olympian have Voith instead of ZF
5.Not many 斜路