There is a direct train line from Luxembourg city. From Differdange Gare train station to warp3 is about 230m.
This search does not work, because it was proposed by chatgpt
Please use the public parking. Do not park on the driveway to warp3. Walk 150m to warp3. Do not park inside the delhaize shopping mall. They close the parking after hours and then it will cost you a lot of time and tons of money to get your car back.
