![](https://image.tmdb.org/t/p/original/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![](https://image.tmdb.org/t/p/w342/2aM2eoynonnHYwy6fBw6uzBRNTq.jpg)
Episode 4
The pressure is on! Between next year and 1990, legislation will be introduced in stages to reduce the level of pollution caused by car emissions. William Woollard examines the various options open to motor manufacturers, and the price motorists will have to pay. Frank Page meets up with a motor club with no cars, and nowhere to go. The recently-launched Citroen BX Estate is road tested by Chris Goffey and compared with one of its predecessors.
Writing:
Stars:
- Derek Smith
- Jeremy Clarkson
- Richard Hammond
Stars:
![](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![](https://image.tmdb.org/t/p/w300/eOnQIuFYGbtZGilWPpG96eYuotZ.jpg)
Other episodes for this season
![Episode 1](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 2](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 3](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 4](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 5](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 6](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 7](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 8](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 9](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 10](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 11](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 12](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 13](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 14](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 15](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 16](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 17](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 18](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 19](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 20](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 21](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 22](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 23](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)
![Episode 24](https://image.tmdb.org/t/p/w300/5ntJqiUKjUxbLttWFUN2fxfU4ch.jpg)