Hot Pursuit is free today...
Quoting from one of the 5-star reviews on Amazon:
"[...]As of this writing, this e-book is available for $2.99, and let me tell you THAT is a bargain. If you love mysteries and/or police proceedurals and/or "buddy" relationships - this book is for you. I have been looking for this as an ebook for awhile, under its' original title - "Citadel Run" - which talks about a famous (fictional?) race that LAPD officers would sometimes do to see if, on their shift, they were able to get to Vegas and back in record time."
[Looks like the author also gave himself a 5-star review a couple of days ago to announce that this version has been professionally re-formatted (presumably, OCR errors fixed.)
Not sure why an author can't figure out how to simply update his Book Description instead of posting a review but, whatevs...the plot does sound good.]