Let x represent the number of Chevys

Fords:3+2x

Buicks:4(3+2x)=12+8x

Total:x+3+2x+12+8x=301

11x+15=301

11x=286

x=<<26=26>>26

Buicks:12+8(26)=220

# Answer

220
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jim collects model cars, and he has 301 models total.  Jim has 4 times as many Buicks as Fords, and 3 more than twice the number of Fords than Chevys.  How many Buicks does Jim have?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
220
Jim collects model cars, and he has 301 models total.  Jim has 4 times as many Buicks as Fords, and 3 more than twice the number of Fords than Chevys.  How many Buicks does Jim have?
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