Head-to-head
LEGO Icons Back to the Future Time Machine vs LEGO Icons Dinosaur Fossils: T. rex Skull
Both built. Both reviewed. Here's how they actually compare on the things that matter.
Set #10300
LEGO Icons Back to the Future Time Machine
The 1.21-gigawatt build. Three configurations, every callback from the films, and a minifig Marty and Doc that actually look like Marty and Doc.
Set #76964
LEGO Icons Dinosaur Fossils: T. rex Skull
The T. rex skull, mounted, base, plaque, and a printed footprint that's the smartest detail in the set.
By the numbers
The spec sheet.
| Metric | LEGO Icons Back to the Future Time Machine | LEGO Icons Dinosaur Fossils: T. rex Skull |
|---|---|---|
| Rating | 5/5WINS | 4/5 |
| Pieces | 1,872WINS | 577 |
| MSRP | $199.99 | $79.99WINS |
| Price per piece | $0.11WINS | $0.14 |
| Verdict | Must buy | Recommended |
| Best for | BTTF fans, 80s nostalgia builders, and anyone who wants a small-footprint Icons set with serious display energy. | Builders who want the museum-skeleton vibe in a single-piece display; fans of the retired [Dinosaur Fossils](/reviews/dinosaur-fossils) who can't find a copy. |
Pros & cons
What I actually noticed.
LEGO Icons Back to the Future Time Machine
Pros
- Three movie-accurate configurations (BTTF1 road, BTTF2 hover, BTTF3 rail)
- Marty and Doc minifigs are the best versions LEGO has ever made
- Mr. Fusion, hover wheels, time-circuit display — every iconic detail is in there
- Compact footprint — fits a small shelf, unlike most Icons cars
- Easy 5–7 hour build, perfect for a weekend
Cons
- Hover-mode wheel swap takes 60 seconds and isn't elegant
- Side-vent stickers are unforgiving if you've never applied LEGO stickers before
- The flux capacitor light kit isn't included (third-party only)
LEGO Icons Dinosaur Fossils: T. rex Skull
Pros
- Movie-accurate T. rex skull anatomy in LEGO scale
- Printed footprint tile on the base — most underappreciated detail in the set
- Articulated jaw — can be staged open or closed
- Modern reissue of the [Dinosaur Fossils](/reviews/dinosaur-fossils) skeleton concept at a single-piece price point
Cons
- Single skull only — no full skeleton like the original 21320
- Display base is smaller than the build deserves
- Lighting matters more than for any other set in the lineup
Made up your mind?
Pick a retailer.
Comparison generated from our individual reviews. Pros, cons, and ratings come from full hands-on builds — see each review for the complete take.