Добавил: The DSystem
Standard HL2 buggy texture was to crispy to me so i resized it up to 2048\2048 with some improvements and made good normal maps for it. It looks good. Just look on the fueltank (if it's fueltank :D ) and on wheels.
Extract archive into \Steam\SteamApps*YOURNAME*\half-life 2\hl2
Fixed headlights. Now no bump on them.
Added a little more detail for tires.
Reduced normal map(and whole work) size without any quality loss