Sure, between the bigger cities, the train is amazing. I did Valencia to Madrid by high speed rail in 2022 for example. Works great. The average speed is close

Sure, between the bigger cities, the train is amazing. I did Valencia to Madrid by high speed rail in 2022 for example. Works great. The average speed is close to the maximum speed of the train; it only slows down to stop. But for the more rural regions and smaller cities, you pretty much need a car.