Up to ten fastest vehicles per class, across all documented years. Each vehicle appears with its best supported time on this layout. Qualifying, race records and record attempts retain their original context.

Published circuit-record holders from the source table across all available years. A class may have fewer than ten documented vehicles; historical record progression is not exhaustive.

Sources checked Sep 11, 2026

1 of up to 10 · 1 documented vehicle best · All years

#	Time	Year	Make	Vehicle / model	Variant / specification	Driver	Date	Vehicle class	Record evidence	Session	Source
1	2:07.600	Not stated	Kawasaki	KR350	—	Gregg Hansford	1978	350cc	Published record	Race	Wikipedia circuit-record table

Coverage is incomplete: these are the best supported entries in our sources, not a certified worldwide top ten. A published race-lap record may be slower than a qualifying or test lap. “Not stated” means the vehicle’s model year is unconfirmed. Exact catalogue matches link to vehicle pages; other vehicles retain their sourced names. Unresolved specifications remain separate.