Hilary is in a much superior car to yours - it's a lot faster, stronger & durable than the
Sentinel, and it's overall performance is fivefold above it too. Hilary's not the most assured of drivers though (aside from when he leaves your view, that's when he becomes seemingly impeccable!), and I can usually take him just after I get the two-star wanted level notification. The cops never bother me either; they only show for a brief spell when you get the notification, and if you're pretty close to Hilary, they quite often won't show until you start edging further ahead. They do act as obstacles at two pivotal points in the race, but once you know what's going to happen, it becomes all to easy to evade them.
Here's a basic runthrough of the method I use, for you to use in order to beat Hilary, without taking advantage of exploits -
-- Begin the race with your foot firmly down. As you near the first left turn, you should keep my foot firmly to the metal. Hilary breaks a little, which will give you the momentum as you go into the turn, to overtake him on the following straight.
-- Once you get onto the straight, you and Hilary should be pretty much neck & neck. This is where you should make a judgement of the road in front of you, and whether it is clear of traffic or not. If it is clear of traffic, you should carry on going head-to-head with Hilary, as nothing will act as an obstacle. If there are cars/Police vehicles ahead of you, you can perform a trick I always use, which is turning into your very own form of cop, and performing a PIT manoeuvre on Hilary, spinning his car around 180°. Now Hilary is pretty fast, and does have the ability to catch you up a little bit, but you will have now given yourself more room to breath upon making sharp left & right turns.
-- At this point, Hilary should not be in your sight; take a brief look behind you to check. If you are lucky, you should only see a very small & faint arrow above his vehicle, meaning the race will now be in your hands, and all you've got to do is keep it together, avoiding the now more frequently occuring police as you progress.
-- When you get to the Ocean Beach hospital, and gear up for a right turn towards the Washington Beach/Vicepoint Island, take your foot off the accelerator and gently brake. More often than not, two
Police cars will drive from either side of the road and act as a barricade in your way. Clattering into them will slow you down, and make Hilary more than likely overtake you if the impact is a big one. So slow down and make the turn right over the grass verge before the road, completely evading the police in the process. This will still give you the momentum and advantage.
-- The same thing will happen again, just in front of the bridge that will take you by the pizza parlour and towards the Malibu. Again, slow down and make your turn over the grass verge, evading the police and putting yourself on the path to glory. From there on-in the race is Child's play, and, if you were good/lucky, you might just clock in at a time under 125 seconds
For those of you who struggle to complete the race the scripted way, here's an explanation of how to make the most of exploits -
You can actually complete this race in any vehicle you wish to. What you do, is get any vehicle you want (preferably one of the faster in the game;
Infernus,
Hotring Racer,
Comet,
Stinger,
Banshee,
Cheetah,
Phoenix or the
Deluxo), and then, prior to the mission, park the vehicle you will be using just beside the first intersection along the race-course (somewhere in or around this badly circled area, if you park the car closer to the Malibu Club, it will be gone upon beginning the mission). Make sure upon exit that you leave the car's door open, it is very important that you do that as it will almost guarantee the car to remain when you leave it out of your sight.
Then begin the mission. As soon as you begin, floor it to where your vehicle is located, and when you get to it, quickly swap and continue with the race. With a very fast vehicle, this mission will almost be a breeze, you'll soon catch Hilary up well before the finishing point, and you should easily and simply pass the mission. Here's a couple of thins to take note of, regarding tips-
-- Stay on your side of the road; you don't want to clatter into oncoming vehicles, especially
Police cars, as they will be targeting you in the first place
-- Watch out for Lampposts/telephone poles; going into one will dramatically slow you down, and it could knock you off balance
-- Although you have a two-star wanted level, the VCPD don't show much, so don't be hesitant that they are closing in on you
-- Try to stay on the road; there are numerous obstacles that will cause you to slow down or change direction, you don't want that do you?!
-- Be aware of two police cars acting as obstacles at junctions. Clattering into them at speed will result in you losing ground on the race, and possibly losing out. There are two pivotal ones, as I have already stated
With that in mind, you should, eventually, nail the race!