Is Audi A4 available in Lane-keeping Alert?

Here are the On Sale and variants of Audi A4:

Here are the Immobilizer and variants of Audi A4:

The Seats of Audi A4 are 5.

Yes, Audi A4 has Airbags, which are: 2019 Audi A4 sport 2.0 TFSI quattro.

Here are the Spare Tyre and variants of Audi A4:

Here are the Brand and variants of Audi A4:

Here are the Front Tyres and variants of Audi A4:

Here are the Airbag Disable Function and variants of Audi A4:

Here are the Speakers and variants of Audi A4:

Here are the Cylinder Arrangement and variants of Audi A4: