determining a first aligned toe angle of {HEAD ~ the first wheel} relative to {TAIL ~ a first reference point}, 
determining a first aligned toe angle of { HEAD ~ the first wheel } relative to { TAIL ~ a first reference point } ,
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH