Better for what? Proper simulators are obviously more realistic in many ways and a great tool for helping understand how set up changes will likely affect a real car but without the additional sensory cues supplied by G forces and feeling through the seat they often feel much less forgiving and slower than real life which can be less fun than a racing game which has a good balance between realism and gameplay.

As Bruce D says online racing can be very frustrating. I have had some fantastic 'races' against some really talented online racers in ghost car mode in the old TRD series games though, two ghost cars racing each other which means there can no intentional or unintentional lag contact just extremely close competition with 'races' won or lost by hundredths of a second often by as little as a 10-20 centimetres nose in front. Great stuff!