html - Form Post with Data for Multiple Tables -

i have html page used updating data on car has multiple tables represented in 1 form. want dynamically update tables input elements providing value identifies table data belongs too.

 <input type="text" class="form-control" id="enginetype" name="enginetype" value="v8"> 

using above example post allow me identify input being associated engine table without having split id or name in server code. have in past used id or name field colon separating pieces of information i.e. id="enginetype:engine" splitting @ colon.

in html5 there better way of passing data? instance looking hint attribute did not not find available.