Nobody reads manuals anymore? Am I weird that I read them before playing the game even if it is another Call of Duty?
The back story of Sin & Punishment: Star Successor is detailed in the game's manual. There you learn about a 2-side dimensional war, multiple earths being cultivated for warriors for one side, Elsa being a broken spy for the other side, and that Isa is the son of a protagonist from the first game.
You can activate free drive in Need for Speed: Hot Pursuit by pressing Y when picking an event location in Career mode. It's right at the bottom of the screen with the control prompt descriptions. It can be easy to miss since this is the only place you can enter free drive as the prompt disappears when you go in to the event list as you mash A through the menus. Speaking of mashing A, on the PC version I can quickly select a car and color without ever having to listen to the description voice over. I didn't notice any mandatory delay during the Giant Bomb quick look of the Xbox 360 version. Most of the time I like to listen to the description since I've been watching a lot of Top Gear lately and have grown to appreciate learning about cars.
I don't know how long you've been playing the game, but the stats do matter a bit. In a latter race, I picked the Mclaren F1 with a top speed of around 202 MPH and struggled to keep pace with the first place AI. When I gave in and switched to the 250 MPH Bugattie Veyron Super Sport, I got the gold medal I was after. It's not detailed, but the cars have different weight to them. It is harder to turn the heavier Bently Continental and Nissan GT-R when compared to the much lighter Lamborgini Gallardo Super Leggera. Even at the highest speed class there are differences as the F1 is a lighter car than the Veyron and thus has quicker handling.
For me, Need for Speed: Hot Pursuit's discrete race tracks are a welcome, temporary change from the open world shennanigans of Burnout Paradise. Paradise tangle of streets got a little annoying to navigate during a race. Hot Pursuit's long stretches of racing highway and race-specific barriers gives me a pleasant Outrun feeling and that is not bad at all.
As an aside, Test Drive Unlimited 2 is coming out in 2011 and that looks like it will scratch the open-world car game itch.