Sentence:  Designers and manufacturers have produced models for purchasers who run the gamut from a nautical version of the elderly Pasadena lady who never drove more than five miles an hour on her once-a-month ride around the block , to the sportiest boatman who <WSD>insists</WSD> on all the dash , color , flair and speed possible to encompass in a single boat . 
Meaning of the word marked with <WSD> tags:  be emphatic or resolute and refuse to budge