"According to the researchers, women found a man who chose to purchase a flashy luxury product (such as a Porsche) more desirable than the same man who purchased a non-luxury item (such as a Honda Civic)."However, there was a catch: Although women found the flashy guys more desirable for a date, the man with the Porsche was not preferred as a marriage partner. Women inferred from a man's flashy spending that he was interested in uncommitted sex."
"When women considered him for a long-term relationship, owning the sports car held no advantage relative to owning an economy car. People may feel that owning flashy things makes them more attractive as a relationship partner, but in truth, many men might be sending women the wrong message."
"Tests on saliva samples showed a significant increase in testosterone while drivers were cruising around in the Porsche."
"...there was either no effect, or even a slight decline, when they got behind the wheel of the battered old Toyota."