Other rental places show $1.99 a day and try to charge $15 a day extra for insurance. That is a scam. It has become so widespread even some experienced travelers claim it is mandatory. It is not.. and that is the best thing about Sixt in Tjiuana!
Sixt in Tijuana does not do that! The liability insurance is included in their rates. I hate surprises and I appreciate Sixt's honesty and integrity.
In the two times I went there, the guy there spoke English very well and showed me the same price I paid on Sixt's website without trying to charge me extra for insurance. Both times, it was excellent. The cars were clean and in great shape.