a Tesla Roadster with four seats?

The Tesla Roadster lacks a four-seat option because of its two-seat sports vehicle design.

 However, for those who need to transport extra passengers in a Tesla,

 the Model S offers five- and seven-seat configurations in addition to three distinct rear seats that fold flat.

The two specialised Roadster seats may be more comfortable and capable,

but these seats occasionally have enough space for a few extra persons. Additionally,

 people with bigger families might think about the spacious seven-seat all-electric Model X SUV.

In conclusion, even though the Tesla Roadster only has three seats, those who need to carry more passengers do have options within the Tesla lineup.