A: No, only the base map. If you own DLCs like Scandinavia or Vive la France, they will still work, but some newer DLCs (Iberia, West Balkans) require newer game versions.
Map shows glitched roads or missing textures. Solution: Verify game files (Steam > ETS2 > Properties > Local Files > Verify). Reinstall the 1.32 beta. Euro Truck Simulator 2 1.32 Download Free Full Version
Happy trucking, and remember: mirrors are your best friend. Keep the rubber side down. A: No, only the base map