using 1998 Toyota Corolla CSi Seca AE101R as an example * Private Price Guide $4,900 - $6,600 * Trade In Price Guide $3,000 - $4,700 * Average Km 165,000 - 275,000 is what the car is worth (check out redbook.com.au for the exact model prices) i had a car which was a repairable write off. hit on the front though, they are not quite the same anymore... really depends on the type of damage and the quality of repair. im going to have a stab and say, take of at least 25% of the market value for a repairable write-off - if you want to go down that path