To answer the original question, everything that you (the driver) could see around you (including the sides and back) would be concentrated into a infinitley compressed small bright point just in front of your eyeballs. Your headlights, the road, stop signs, frightened roos etc and your CD-player lights as well as your rear lights would all be in that bright point. So basicaly your stuffed as far as seeing anything ahead. Yep the headlights are in fact shinin on the road ahead of you, and the last thing a goanna would see before you took him out would be your headlights hittin his eyes at exactley C. Also the time taken to get wherever you were goin to at such a great rate of knots would be zero as measured by your watch. If you drove to Proxima Centauri (nearest star) youd be there in an instant but we back on Earth would measure 4.25 years in real time (as against apparant time which would be 7 years near enough).
Since C is a constant to observers, then time is the variable. The road-side garage bloke would see you wizzin past at C but hed definatley see your headlights (and your rear-plate rego too!).