Get Multiple Values Of Selected Paper-radio-button

I have a dom-repeat element that creates a paper-radio-group with a couple of paper-radio-buttons. These radio-buttons each contains two pieces of unique information loaded from an

Solution 1:

Use selected-item and add a conditional attribute for each value (model and price) onto the paper-radio-button element:

<paper-radio-group class="layout vertical" selected-item="[[selectedItem]]">
  <template is="dom-repeat" items="[[models]]" >
    <paper-radio-button name="{{item.model}}" model$="[[item.model]]" price$="[[item.price]]"><span>[[item.model]]</span> <div class="paper-font-caption"><span>[[item.price]]</span> SEK</div></paper-radio-button>
  </template>
</paper-radio-group>
<paper-item><span>[[model]]</span></paper-item>
<paper-item><span>[[price]]</span></paper-item>

Then setup an observer to monitor changes to selectedItem and set the two values you want to capture as follows:

...

observers: [ '_selectedItemChanged(selectedItem)' ],

_selectedItemChanged: function(el) {
  this.price = el.getAttribute('price');
  this.model = el.getAttribute('model');
},

...