The second era includes 3 passenger trains, again named after animals, with one of them being a bonus engine.
You can unlock new engines by using research points generated by the Laboratory in your Train Station. Once you've researched the necessary pre-requisites, you can begin unlocking engines. At the end of each era, a coupling system becomes available, letting engines transport goods from the next era.
Giraffe
Requirements:
None (first engine of Era 2)
Research Cost: 32 Research Points
Slots: 1 | Reliability: 50% | Acceleration: 5/20 | Speed: 105 km/h | Passengers: 55
Cheetah
Requirements:
Research the Lynx
Research its Reliability & Tractive Force upgrades
Research Cost: 45 Research Points
Slots: 1 | Reliability: 90% | Acceleration: 14/20 | Speed: 225 km/h | Passengers: 40
Kangaroo (Bonus)
The Kangaroo is the Passenger Bonus Engine of Era 2.
It can be bought in the Rail Nation Shop or won through the Lottery or competitions in Era 2.
Note: The cost reduces if purchased in a later era.
Slots: 0 | Reliability: 95% | Acceleration: 15/20 | Speed: 130 km/h | Passengers: 65