Sounds like a great time, and I agree, it is always more enjoyable with someone else. A friend of mine and I took out his C5 V8 powered RX7 and 427 cobra the other day and basically we played real life gran tourismo LOL.
And if I were in the Mexican desert with no one around and in the two cars you were in, I would be a lot more worried about drug cartel and crimincals than I would the police