Careless driving, inconsiderate driving and driving without due care and attention carries up to £5,000 fine, 3-9 penalty points and a discretionary ban.
Causing death by careless driving can carry up to 5 years in prison, and a driving ban for a minimum of one year
Causing death by careless driving when under the influence of drink or drugs carries 1 to 14 years in prison, an unlimited fine and a driving ban for a minimum of two years