Hi,
well, it's not just "code snippets" :-)
it's a whole prg you need there !
My 2 cents :
1) store the form values in a MySQL table
with the following columns :
make
model
color
mileage
email (of the requester)
(maybe also a "date of peremption" to avoid sending an email if the request is very old)
2) when someone INSERT a new ad in the database
check the table we have see in step 1
3) For every corresponding entries, send an email
with the mail() function for instance.
regards,
Hervé.