Underbody Paint

[SultanOfSwing]

Can anyone recommend some paint (red if it matters), that can be used on the underside and on some suspension components of a HiLux?

My cousin is doing a bit of a resto on one and wants to use some anti chip paint that is smooth but chip resistant. I suggested Hammerite but not smooth enough apparently. Although can't you get a smooth version?

Any tips appreciated.