Parts Information

H-bridge:
http://en.wikipedia.org/wiki/H-bridge

LIS2L02AL Accelerometer:
http://www.st.com/stonline/products/literature/ds/11666.pdf
Buy Part

8051 Microcontroller:
http://en.wikipedia.org/wiki/8051
http://www.cs.ucr.edu/~dalton/i8051/
http://www.hobbyprojects.com/microcontroller_tutorials.html

RCT-433-AS Transmitter:
http://www.radiotronix.com/datasheets/RCT-433-AS.pdf
Buy Part

RCR-433-RP Receiver:
http://www.radiotronix.com/datasheets/rcr433rp.pdf
Buy Part

Links

Here's a couple of other projects I found from the link Professor Harris sent us:

Original RC NSX: http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2003/kw84/Report/documentation.htm
Notes:
-Covers the full design of an RC car
-Includes schematics and parts

Line Following Van:
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2007/bl222_wh84/bl222_wh84/index.html
Notes:
-Uses phototransistors and an LED to follow the path of a black line
-Phototransistors can be used to implement the "speed up" functionality

Tilt Controlled Video Game:
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2007/cmm98_jl478/cmm98_jl478/index.html
Notes:
-Uses accelerometers to interact with the game

Dual Control R/C Car #1:
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2006/acd32ddk26/Antonio%20and%20Donn%20Final%20Project.htm
Notes:
-Uses a dual-axis accelerometer to implement the steering and acceleration of the car
-Can also use LEDs as photo sensors to control the car (may be used for "speed up" functionality)

Dual Control R/C Car #2:
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/mq23/webpage/index.html
Notes:
-Uses a dual-axis accelerometer to implement the steering and acceleration of the car
-Can also use a computer mouse to control the car

Light Sensing Robot
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/dhs25/dhs25th243/highlevel.htm

Accelerometer Mouse
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/mouse%20webpage%20KM249_AK288/INDEX.HTM

Here's a link to a RC Car Kit with schematic of transmitter/receiver schematic (view pdf) :

http://www.electronickits.com/kit/complete/remote/ck1900.htm