Opponent stuff:

// Opponent
80s Guy
80s
83 Shelby Charger
3				// Strength rating (1-5)
315000			// Cost to buy it
all				// Network availability ('eagle', or 'all')
ShelChar.TXT		// vehicle filename
//vehicle description
2.2 L Turbo I I4
0-60: 10.0 SECONDS
TOP SPEED: 117MPH
8,005 Actual Mile Shelby Charger 2.2 Liter 4 Cylinder 5 Speed Survivor

Sound stuff:

// ENGINE NOISE

8113				// Sound ID
0x00,0x01			// Type (0), Flags (0)
83Chrg.WAV			// File name
6000				// Priority
0					// Repeat rate
200,200 			// MinVol, MaxVol
0,0					// MinPitch, MaxPitch
0,0					// MinSpeed, MaxSpeed
0x0					// Special FX index
1					// Number of low memory alternatives
5300