How to measure velocity in one direction?

Hello. I am making a VehicleSeat-based driving system for road vehicles. The problem is, when the vehicle turns, the speed changes because it uses Velocity.Magnitude. How do I measure speed in one direction using lookVector or something else?

sp = s.Velocity.Magnitude

Figured it out myself:

sp = (s.Velocity * s.CFrame.LookVector).Magnitude