I ended my movement near an opponent's car that was not moving in the same direction and the game allowed me to make an optional attack action, so I did. I thought this was not legal according to the second edition "SLIPSTREAMING" section of the rules. I was surprised that this attack option came up. But maybe I misunderstood the rules? Can someone point me to the correct section of the rules where this is legal? Thank you! 
UPDATE: ANSWERED
Thanks to Skoki's feedback and link to the updated rules. I have found the updated Lateral/Side Attack (Shunting) rule in the Italian version of the rules listed on the official VektorRace webpage. If you open the following link in Chrome, select the Italian rules and then select translate to your native language in the upper right of the address bar, need Google Translate plugin installed. You can find the rule listed as the last attack maneuver in the "Attack Maneuver" section, just before the Pit Stop rules:
https://kaleidosgames.com/smartrules/vektorace-sr/
Here is the excerpt from those rules:
"If a car ends its movement with its nose (in whole or part) inside the lateral attack area and at least in 2nd gear, it can close the distance by positioning itself adjacent to the opponent's car by performing a Lateral/Side Attack (Shunting). The attack can be performed even if the car is not in the same direction of travel, but moves towards the attacked car.
Screenshot of this scenario and of the specific rules in the following link:
https://docs.google.com/document/d/1Ybt ... it?tab=t.0
UPDATE: ANSWERED
Thanks to Skoki's feedback and link to the updated rules. I have found the updated Lateral/Side Attack (Shunting) rule in the Italian version of the rules listed on the official VektorRace webpage. If you open the following link in Chrome, select the Italian rules and then select translate to your native language in the upper right of the address bar, need Google Translate plugin installed. You can find the rule listed as the last attack maneuver in the "Attack Maneuver" section, just before the Pit Stop rules:
https://kaleidosgames.com/smartrules/vektorace-sr/
Here is the excerpt from those rules:
"If a car ends its movement with its nose (in whole or part) inside the lateral attack area and at least in 2nd gear, it can close the distance by positioning itself adjacent to the opponent's car by performing a Lateral/Side Attack (Shunting). The attack can be performed even if the car is not in the same direction of travel, but moves towards the attacked car.
Screenshot of this scenario and of the specific rules in the following link:
https://docs.google.com/document/d/1Ybt ... it?tab=t.0