It was 10* warmer driving up from Florida to PA w/ Steve McD. I couldn't feel my feet for hours. I suggest, as I did, stuffing paper towels in between the window and door frame and adding gaffer's tape to seal it. Then, more tape under the dash on the firewall. Then, set fire in back of wagon and walk away.
We also bought blankets at Walmart for the drive. Those helped a bunch.
Speedycop/NSF Racing /Pinewood Dirtbags
'10 Summit, CMP3, Autobahn, '11 CMP1, NJMP, CMP2, Summit, G'man, Stafford, Charlotte, Autobahn, ECR '12 CMP1, NJMP, G'man, NHMS1, Summit, CMP2, NHMS2, ECR, '13 CMP1, ECR, Summit, NJMP, THill, CMP2, MSR, NHMS, Sears '14 Barber, Sears1, ECR, CMP1, NJMP1, BWillow, Sebring, CMP2, THill, Sears2, '15 Sears1, Barber, Ridge, THill, '16 Sears1