March 15, 16 & 17, 2018 - Run to the Sun
car show @ the former Myrtle Square Mall, 2501 N. Kings Highway, Myrtle Beach, SC 29577. 3,000 plus cars/free.
April 5-8, 2018 - Charlotte AutoFair
@ Charlotte Motor Speedway. Public Parking is $5 per vehicle. Public admission is $11 plus tax, per person — under 12 with adults, are free. Spring is the better swap meet versus the Fall show.
May 18th, and 19th, 2018 - Steel In Motion
car show @ Union County Dragway, 2102 Santuc-Carlisle Hwy, Union, SC 29379. Spectators are $20 for a Friday/Saturday combo or $20 for Saturday alone. If you like Gassers, pre-1970 cars, flag drop racing, rocka-billy bands, and good food, this is it.
You can pull all of these shows up on the internet and get more info.