Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Chassis | Engine | Start | Finish | Entrant |
| --- | --- | --- | --- | --- | --- |
| 1969.0 | Lola | Offy | 4th | 7th | Penske |
| 1970.0 | Lola | Ford | 5th | 2nd | Penske |
| 1971.0 | McLaren | Offy | 2nd | 25th | Penske |
| 1972.0 | McLaren | Offy | 3rd | 1st | Penske |
| 1973.0 | Eagle | Offy | 3rd | 15th | Penske |
Question:
What is the chassis for offy engine and 25th finish?
Answer:
McLaren