Surprised this is free as it's been floating around the top 100 since it came out!
Faster Harder by Colleen Masters
blurb: How does a responsible, intelligent, career-driven girl find herself half-naked and hooking up with a bad boy Formula One driver in a Barcelona night club bathroom?
Siena Lazio is a lot of things...but reckless isn't one of them.
She's only in her mid-twenties and already Team Ferrelli's Director of Public Relations and heiress to the top Formula One racing team. The esteemed daughter of Alfonso Lazio, the greatest driver F1 has ever seen, Siena seems to have it all figured out. All she has to do is uphold her family's honor and ensure her brother Enzo's public image is pristine while he rises to fame and clenches the title as Formula One's new champion.
Everything is perfect...
...Until she's swept mercilessly off her feet by the one man she can never be with. The one man who can [edited] it all up.
Harrison Davies is Team McClain's secret weapon and he's the only driver who threatens to steal the championship from Enzo. The tattooed British bad boy knows how to get what he wants. And always gets what he wants.
Harrison and Siena fall deeper and deeper with each secret tryst. Passion flares, reality fades, and the lines between right and wrong begin to blur. Driven by lust and ambition the couple delves into a world of treachery, deceit, lies, and ultimate betrayal. Is Siena ready to place her fragile heart into the hands of a speed demon and will the thrill of falling for him be worth it when they wreck?
Book #1 in the Take Me... Series
Also [got it at kobo!]
$.99 Rock Gods of Romance Box Set