In Grip races, there are four different modes (Normal Grip, Grip Class (all versions except for the PlayStation 2 and Wii versions), Sector Shootout and Time Attack). Normal Grip races feature 2 to 4 laps around a circuit track with up to 7 other racers. First driver to cross the finish line wins. Grip Class races take 8 racers and divide them into two even groups. The racers are placed into the groups based on their vehicles performance potential. Group A starts about 10 seconds ahead of group B, both groups race on the same course but are only competing against the three drivers in their group. In Time Attack, the driver with the fastest overall single lap time wins the event. In Sector Shootout the track is divided into several segments, with drivers attempting to complete these sectors in the shortest possible time. Extra points are awarded to drivers who 'dominate' the course by holding the fastest time for every segment of the track.
In Speed Challenge races, players must cross the finish line first to win the race. Players have to be cautious in Speed Challenge at speeds exceeding 200 mph.
In Top Speed Run races, there are 3 to 9 checkpoints and at the instant a player crosses a checkpoint their speed is clocked and added to that player's score, the player with the highest cumulative speed wins. This is similar to the Speedtrap events in Need for Speed: Most Wanted.
In Drift, players drift to emerge as the driver with the most points scored in the event. Points are scored based on speed, angle, and how long the drift is held.
Other than game play itself, ProStreet features detailed damage modeling, unlike previous Need for Speed games (except for High Stakes and Porsche Unleashed) where damage is relatively little or non-existent altogether. The new damage system introduces more depth of damage (except on the PlayStation 2, PlayStation Portable, Nintendo DS and Wii versions, where the damage modeling has been scaled down due to the limited processing power, so the damage is similar to the previous titles) where any object in the game world has the potential to inflict cosmetic damage breaking off pieces of the car such as the hood, bumpers, side view mirrors, light damage, or heavy damage which reduces performance of a car, and even has the potential to total a car immediately after impact.
The Speedbreaker does not return for ProStreet (as the game lacks a police presence; the Speedbreaker was mostly intended for police evasion, however it returns for the Nintendo DS version of the game).
Customization
Players have a wide variety of decals, vinyls, and paint colors, all very similar to the previous games in the series. Additional extras have been added as well. Players have a huge variety of body modifications, such as rims, hoods, body kits, exhaust tips, spoilers and roof scoops.
The Autosculpt feature, which was first introduced in Need for Speed: Carbon, is featured in ProStreet and plays a significant role in terms of car performance. Although there are more parts to autosculpt in the car, the autosculpting method is for the most part the same. The hood, roof scoop, front bumper and spoiler can all change how a car performs in a race. Autosculpt can affect everything, from a car's handling to its downforce. ProStreet now allows the player to modify stock and wide body kits as well as hoods, roof scoops, wheels, spoilers etc. A new feature called the Windtunnel is introduced on the PC, PlayStation 3 and Xbox 360 versions of the game. It is not available on Wii and PlayStation 2 versions. The Windtunnel, along with Autosculpt, can affect a car's performance.
Locations
Many of the races take place on well-known roads. Locations include Chicago (Meigs Field Airport; now disused), Nevada, Europe, Tokyo Dockyard (Daikoku Futo parking area), and the Autobahn (A100 Berlin ring road). The Texas World Speedway, a real track in Texas used by the SCCA and in the 70s NASCAR, and also the Infineon Raceway, available in the NASCAR configuration as "GP Circuit" and AMA configuration as "Long Circuit". The game also includes many other real world tracks such as Portland International Raceway and Willow Springs International Motorsports Park in the USA, Autopolis and Ebisu Circuit in Japan, and Mondello Park in Ireland. The tracks are the same in all versions of ProStreet.
Online
Online modes are not featured in the PlayStation 2 and Wii versions. However the PlayStation Portable, Nintendo DS, Xbox 360, PlayStation 3 and Windows PC versions feature online mode. Unlike previous Need for Speed titles, it is much more integrated into the game; as long as a player is connected to the Internet and logged in, his/her in-game progress is recorded for the purpose of online leaderboards. A player's custom-built car can also be shared online via blueprints, with the creator being given credit whenever their car setup is used for a leaderboard. Online features have been discontinued on the 19th of March 2012.