How long does the public pre-sale last?
The public pre-sale of
premium vehicles will last for 2 months, or until they are all sold out, whichever comes first. Following that there will be the sale of midgrade and later regular grade vehicles.
What is the minimum amount needed to invest in order to join the sale?
The War Riders pre-sale is not an ICO so it is not really like that, the prices of all vehicles are set in the contract and slowly rise as supplies dwindle. That being said, last I checked an SUV was 0.0337 Eth, so technically that would be the minimum.