I am going with the length ratio as the primary reason for this design possibly being aerodynamic.
I'm pretty sure it's designed to operate under aircraft wings and be resistant to blow-over from accidental jet blasts.
Odg: TAM - Tovarna Avtomobilov in Motorjev
TAM - Tovarna Avtomobilov in Motorjev - page 21 - TAM - autobusi.org forum
Airport Bus Included As A New Classification Under Public Utility Vehicles
http://www.livinghistorysociety.org/...lity-vehicles/
2014
TAM Durabus With Profit, Still Waiting for Govt Incentive Confirmed Two Years Ago
Quote:
Tam Durabus, a Chinese-Slovenian joint venture that bought the bankruptcy estate of the once famous bus manufacturer in Maribor, announced Thursday it planned to turn a profit this year on the back of strong sales................
The company plans to become the market leader in the airport bus segment and capture 40% of the market in a year and a half, according to Postl................
The company officially unveiled today a new product, the Vivair airport bus, at a presentation for 50 partners from Europe, Asia and Africa.
Postl said additional new products would be launched next year provided the government finally approves a EUR 3.4m incentive for the production of electric buses.
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https://www.tam-motors.eu/buses/vivair-104wl/
More detail photos here:
https://www.tam-motors.eu/buses/vivair-104wl/