The volume of the tire is 37 L.
Leon is measuring the gauge pressure. The actual pressure is gauge pressure plus atmospheric pressure.
Standard atmospheric pressure is 1 bar = 100 kPa, so
p = (220 + 100) kPa = 320 kPa
pV = nRT
V = (nRT)/p = (4.8 mol × 8.314 kPa·L·K⁻¹mol⁻¹ × 297 K)/320 kPa = 37 L