Hagerty and Grundy are the two most recognised names in US specialty auto insurance. Both offer agreed value policies, both target enthusiast vehicles, and both have strong reputations — but they have meaningful differences in how they price builds, who they cover, and what extras they include. The right choice depends heavily on your car type, usage, and whether track/strip use is part of your plans.

Hagerty: Overview

Hagerty has grown from a small Michigan insurer into the world’s largest specialty car insurance provider, with over 2 million vehicles insured globally. Key features for modified car owners:

• Agreed value policies with no depreciation at total loss
• Hagerty Drivers Club membership included (roadside assistance, events, Hagerty media)
• Broad acceptance of modifications including performance work
• Flexibility on mileage (they don’t impose strict limits like classic car policies)
• Coverage available for cars driven regularly, not just kept for shows

Hagerty typically prices slightly higher than Grundy for the same vehicle and coverage — but the Drivers Club membership and broader road-use flexibility often justify the difference for regularly-driven modified cars.

Grundy: Overview

Grundy Worldwide pioneered the agreed-value concept for collector and specialty cars in 1947. Key features:

• Agreed value — the standard they established
• Competitive premiums, often 10–20% below Hagerty for equivalent coverage
• No mileage restrictions (unique in the market)
• Coverage for cars used regularly, not just on weekends
• Strong reputation for claims handling

Grundy lacks the membership ecosystem that Hagerty offers, but tends to be the preferred choice for owners who want straightforward, competitive coverage without club fees baked in.

Side-by-Side Comparison

Which Is Better for a Drag Build?

Neither Hagerty nor Grundy is ideal for a full-time drag car. Both are oriented toward road-driven enthusiast vehicles. For a street/strip build driven to events, Hagerty’s flexibility on use and mileage makes it a stronger option. For a dedicated track or strip build, you need a motorsport-specific insurer alongside either policy. Use our quote form to connect with specialists who cover active drag builds.