paint protection - only if 3M clear bra is installed in the front Q6 W6 K# d, _, Z/ eleather protection - no : ]7 p9 h5 P% K) W3 ^/ G+ M& Kundercoat - you can do it yourself; E! _9 o7 V# \5 {
rock guard - it is ugly- p; Y' c1 u" q: B" P
rust inhibitor - no, most new production car chassis are treated with anti-rust chemical before primer.