It's not a bad idea, though you could make the cooling worse if you didn't use the right water in the system.

I was going to buy a similar mister for my home A/C, but I read of many problems when/if the water wasn't filtered, and de-calcified or rid of mineral salts, first. Over time, the unfiltered water would harden over the fins, and reduce cooling efficiency.

I nearly bought one, after two days of 111F last year, and I've got it in my mind as we're getting a stretch of 102-109F temps this week, but I'll probably not , as we have problems with water supply and power going off intermittently, all summer (and spring, fall, and winter).

But, in the case of living/driving in desert conditions, I probably would get onne for car and home use.

Oh, nitrous oxide will cool your intake charge even better, but I'm not so sure that my wif would let me use that (again), at least on my X5.

__________________
01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide