Are levels in Hill Climb Racing procedurally generated?

Solution 1:

Major Edit:

I asked the developers ([email protected]) and this is the reply I got:

Sami-jukka Piippo (Fingersoft)
Aug 30, 09:08 EEST

Hello,

Some of the stages are hand made and some are procedurally generated. Go see how far you can get! ;)

So, that's the final answer. Some stages are made by a seed and some are hand-crafted (eg. Nuclear Plant repeats every 5-6 km from the beginning).