I'm a little south of Katy. Most of my family lives in Hallettsville so I drive down I-10, past Hennesey on a regular basis.
A cousin of one of my good friends has a Hennesey Z28. They both grew up racing cars and he said that Z28 scared him. The guys that said they are overpriced clearly don't know what they do to vehicles. I'd love to have one of their Cadillac sedans!