Thanks O2K...I just checked with Diva and they charge $86.80 one-way from LAX to Westwood! Even though I could bill my client for the $86.80 there's no point in spending almost 3x as much as a cab for such a short ride.
Anyone know of other, more reasonably priced black car services in LA? I'm used to the low rates of the NYC car services, some of which are actually cheaper than a yellow cab from the airports to Manhattan.