Witnesses chased a van after it struck a Ford Focus showering the interior with glass from the passenger side windows.
Reginald Carswell (65), of Harvey Close, Bourne, was driving a curtain sided Luton type van along High Street St Martin’s in Stamford when he hit the Ford and carried on towards the A1.
Rebecca Ritson, prosecuting, said witnesses followed in a vehicle after seeing the accident at 4.45pm on May 31.
Carswell told police there was no room to turn around after he was flagged down.
Spalding magistrates on Thursday fined Carswell £185 for failing to stop and £95 for driving without due care and attention. He must pay £43 costs and a £15 victim surcharge.
He admitted those offences and failing to report an accident, for which he received no separate penalty.
Solicitor Carrie Simpson, mitigating, said Carswell didn’t realise he had hit the car.
She said: “He is 65 years old and he had never troubled a court before.”