The first generation of Toyota Avensis is an executive class sedan built by Toyota from 1998 to 2003. Avensis was considered to be a reliable car of good quality.

The following body types were present:
The car was offered with four engines:
| Car | |
| Brand | Toyota |
| Model | Avensis |
| Chassis | |
| Body type | sedan |
| Doors | 4 |
| Seats | 5 |
| Engine layout | front engine |
| Drive | front wheel drive |
| Engine | |
| Type | Otto |
| Layout | Inline 4 |
| Capacity | 2000 ccm |
| Dimensions | |
| Wheelbase | 2630 mm |
| Length | 4520 mm |
| Width | 1710 mm |
| Height | 1425 mm |
| Chassis | |
| Body type | wagon |
| Dimensions | |
| Wheelbase | 2630 mm |
| Length | 4600 mm |
| Width | 1710 mm |
| Height | 1500 mm |