###Challenge

Build out code in the lib directory that simulates a car race!

###Steps

• Clone this repo onto your local machine and cd car-racing-lab.
• If you haven't already, run gem install rspec. This installs the gem rspec which we will use for testing our Ruby scripts.
• Run rspec in the main directory. This will run your test suite, and you'll see all of your failing tests.
• READ THE ERRORS and methodically pass each test one by one. Hint: remember to use p statements to examine your objects.
• Once you fix the errors and have passing tests, see if you can refactor (remember: "red, green, refactor").

Once the tests are passing you should have:

• a Car class that can accelerate to a certain speed
• a Race class which, when instantiated, instantiates two Cars and accelerates each to a random speed between 0-100
• an instance method on the Race class called winner that returns the winning car (determined by a greater speed)
• an instance method on the Race class called loser that returns the losing car (determined by a lesser speed)

& you will be able to run:

race = Race.new
race.winner
# => <Car ...>
race.loser
# => <Car ...>