numerous suggestions. them with a * at end are most important in my view
1) safety car (with option to turn on or off) *
2) interactive drivable pits (with option to turn on or off)
3) interactive podiums spraying champagne, lifting trophy and hearing your national anthem (with option to turn on or off)
4) parade lap (with option to turn on or off)
5) kers *
6) more realistic weather in qualifying so when it is soaked and raining heavily in q1, q2 will not be bone dry *
7) more constantly changing dynamic weather, with possibility of very short light showers lasting just about a minute, that may lead to drivers (player and computer) incorrectly changing to wets, with the track staying dry
8) interactive inlap after racing, with possibility of celebrating, using controls to wave to crowd and throw fists in the air (with option to turn on or off)
9) more helmet designs to choose from (not just country flags or plain coloured)
10) split screen offline *
11) pre-season tests on carrer mode to try different packages, to get the car set for season, possibly including test tracks such as jerez
12) different options for agent, woman from 2010 did my head in
,
13) more interactive press conferences (maybe an option to take questions from different members of the press)
14) pre-race on grid interview
15) commentry *
16) engine failures and other mechanical failures (didnt happen in 2010) and having to find best place to park up if you retire *
17) better pit releases (not making you wait if theres another car at other end of pit lane) *
18) possibility to choose your race engineer voice,
19) better telemetry
20) race marshals/stewards (all trackside waving flags at you on inlap after race)
21). possibility to queue at the end of pitlane at start of a practice of qualifying session
22) more realistic damage, so in heavy crash there is a lot more damage visible, and possibly the front end of car goes through tyre barrier,
obviously most would not happen, but there are some that i feel to be essential