The VW T1, more precisely VW Type 2 T1, also known as the Bulli, was a small transporter from Volkswagenwerk GmbH (from 1960 onwards: AG). The T1 was the first model of the VW Bus series, whose models are officially called VW Transporter and internally referred to as Type 2.
The model works best with a weight around 1. The prompts for the sample images were created with my GPT: GPT