Considering my '08 Mazda3 iSport has a drive-by-wire throttle, how difficult would it be to add factory cruise control? How much would the parts cost? Has anyone ever done it?

VM

 

On '06 and previous year models all that was needed to add cruise control was to add the switches and the brake switch. I think the parts cost about $100 unless you could get them cheaper from a junkyard or somewhere else.

There's been rumor that that method doesn't work on '07 and newer models. There's a guy on www.mazda3forums.com who's going to try it on his newer model so I'll chime back in once he posts his results.