The question likely makes no sense, you can't travel at N-times the speed of light for N >= 1. If we're wrong and you can, we probably have no idea what it'd lo

The question likely makes no sense, you can't travel at N-times the speed of light for N >= 1. If we're wrong and you can, we probably have no idea what it'd look like. You could kind of guess by trying to extend our models out to those speeds, but I think you're going to just find random guesses and formulas that no longer make any sense because you've exceeded the range of values they're defined over.