How does it compare?
Speed
When it comes to let-it-rip speed status, the IVECO E-WAY 12m confidently hits a top speed of around 50 mph (80 km/h). While its no greased lightning, it’s more than adequate for urban routes. The BYD K9 mirrors this, also topping at 50 mph (80 km/h), giving a nudge-and-a-wink similarity. The Proterra Catalyst E2 manages a flashier 65 mph (104 km/h), outpacing the serene IVECO. Meanwhile, the Mercedes-Benz eCitaro cruises at a respectable 45 mph (72 km/h). Finally, the NFI Xcelsior Charge dances similarly to the Proterra with a top speed of 62 mph (100 km/h).
Range
On to the mileage muscle – the IVECO E-WAY 12m flexes a robust range of about 217 miles (350 km) on a full charge. The BYD K9 struts a similar distance with a claim-to-fame range of 155 miles (250 km), and the Proterra Catalyst E2? A staggering 350 miles (563 km), putting other buses to green shame. The Mercedes-Benz eCitaro clocks in at around 125 miles (200 km), while the NFI Xcelsior Charge surprises no one with its impressive 260 miles (418 km).
Power
In terms of raw thrust, the IVECO E-WAY 12m houses a 350 kWh battery pack. Comparatively, the BYD K9 totes a 324 kWh unit, just a hair below. The Proterra Catalyst E2 arms itself with a hearty 660 kWh, power-guzzling at its best. The Mercedes-Benz eCitaro strides in with its 243 kWh and the NFI Xcelsior Charge stands tall with 466 kWh of electrifying might.
Charging Time
Time to power up – the IVECO E-WAY 12m takes about 4-5 hours using a standard charger. The BYD K9 modestly sidelines it at 3-4 hours. With lightning reflexes, the Proterra Catalyst E2 can juice up in 2-3 hours, trumping the lot. The Mercedes-Benz eCitaro shuffles through 3-4 hours for a full charge, and the NFI Xcelsior Charge sees days brighten in just about 2-4 hours too, keeping the charging swiftness theme alive.
Price
Now for the wallet whack. While the IVECO E-WAY 12m prices align within a non-disclosed ask-the-dealer bracket, the BYD K9 steers into the market at approximately $500,000 (£370,000, €430,000). The Proterra Catalyst E2 demands a cool $799,000 (£592,000, €710,000). For the Mercedes-Benz eCitaro, you might shell out around $550,000 (£407,000, €487,000). Meanwhile, the NFI Xcelsior Charge commands a premium at $750,000 (£556,000, €666,000).

