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