I just picked a random piece of this sound (4s to 7s), copied it and moved it by 1.5s to hide possible transitions... no further editing was needed! The perfect tire squeal sound loop!

soxi says:

Input File     : 'tires_squal_loop.wav'

Channels       : 1

Sample Rate    : 96000

Precision      : 24-bit

Duration       : 00:00:03.00 = 288000 samples ~ 225 CDDA sectors

File Size      : 864k

Bit Rate       : 2.30M

Sample Encoding: 24-bit Signed Integer PCM